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Finding the Fourth Proportional to 706,132.76, 974,239.26 and 438,016.28

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Solution

The fourth proportional to 706,132.76, 974,239.26 and 438,016.28 is: 604,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,132.76 : 974,239.26 = 438,016.28 : x
  2. Step 2: Convert to fraction form
    706,132.76/974,239.26 = 438,016.28/x
  3. Step 3: Cross multiply
    706,132.76x = 974,239.26 × 438,016.28
  4. Step 4: Simplify right side
    706,132.76x = 426,732,656,495.15
  5. Step 5: Solve for x
    x = 426,732,656,495.15/706,132.76
  6. Step 6: Final answer
    x = 604,323.55

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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.