Home / 741,808.10-1,112,712.15-489,209.60

Finding the Fourth Proportional to 741,808.10, 1,112,712.15 and 489,209.60

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Solution

The fourth proportional to 741,808.10, 1,112,712.15 and 489,209.60 is: 733,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,808.10 : 1,112,712.15 = 489,209.60 : x
  2. Step 2: Convert to fraction form
    741,808.10/1,112,712.15 = 489,209.60/x
  3. Step 3: Cross multiply
    741,808.10x = 1,112,712.15 × 489,209.60
  4. Step 4: Simplify right side
    741,808.10x = 544,349,465,816.64
  5. Step 5: Solve for x
    x = 544,349,465,816.64/741,808.10
  6. Step 6: Final answer
    x = 733,814.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.