Home / 731,177.28-1,009,164.13-489,880.58

Finding the Fourth Proportional to 731,177.28, 1,009,164.13 and 489,880.58

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Solution

The fourth proportional to 731,177.28, 1,009,164.13 and 489,880.58 is: 676,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,177.28 : 1,009,164.13 = 489,880.58 : x
  2. Step 2: Convert to fraction form
    731,177.28/1,009,164.13 = 489,880.58/x
  3. Step 3: Cross multiply
    731,177.28x = 1,009,164.13 × 489,880.58
  4. Step 4: Simplify right side
    731,177.28x = 494,369,903,049.07
  5. Step 5: Solve for x
    x = 494,369,903,049.07/731,177.28
  6. Step 6: Final answer
    x = 676,128.64

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Double scale
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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.