Home / 897,016.12-1,237,892.02-489,114.76

Finding the Fourth Proportional to 897,016.12, 1,237,892.02 and 489,114.76

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Solution

The fourth proportional to 897,016.12, 1,237,892.02 and 489,114.76 is: 674,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,016.12 : 1,237,892.02 = 489,114.76 : x
  2. Step 2: Convert to fraction form
    897,016.12/1,237,892.02 = 489,114.76/x
  3. Step 3: Cross multiply
    897,016.12x = 1,237,892.02 × 489,114.76
  4. Step 4: Simplify right side
    897,016.12x = 605,471,258,268.22
  5. Step 5: Solve for x
    x = 605,471,258,268.22/897,016.12
  6. Step 6: Final answer
    x = 674,983.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.