Home / 830,648.40-1,146,294.84-448,675.19

Finding the Fourth Proportional to 830,648.40, 1,146,294.84 and 448,675.19

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Solution

The fourth proportional to 830,648.40, 1,146,294.84 and 448,675.19 is: 619,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,648.40 : 1,146,294.84 = 448,675.19 : x
  2. Step 2: Convert to fraction form
    830,648.40/1,146,294.84 = 448,675.19/x
  3. Step 3: Cross multiply
    830,648.40x = 1,146,294.84 × 448,675.19
  4. Step 4: Simplify right side
    830,648.40x = 514,314,055,133.02
  5. Step 5: Solve for x
    x = 514,314,055,133.02/830,648.40
  6. Step 6: Final answer
    x = 619,171.79

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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.