Home / 679,629.78-936,950.91-542,275.17

Finding the Fourth Proportional to 679,629.78, 936,950.91 and 542,275.17

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Solution

The fourth proportional to 679,629.78, 936,950.91 and 542,275.17 is: 747,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,629.78 : 936,950.91 = 542,275.17 : x
  2. Step 2: Convert to fraction form
    679,629.78/936,950.91 = 542,275.17/x
  3. Step 3: Cross multiply
    679,629.78x = 936,950.91 × 542,275.17
  4. Step 4: Simplify right side
    679,629.78x = 508,085,211,290.53
  5. Step 5: Solve for x
    x = 508,085,211,290.53/679,629.78
  6. Step 6: Final answer
    x = 747,591.15

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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.