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Finding the Fourth Proportional to 575,727.90, 863,721.45 and 338,948.70

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Solution

The fourth proportional to 575,727.90, 863,721.45 and 338,948.70 is: 508,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,727.90 : 863,721.45 = 338,948.70 : x
  2. Step 2: Convert to fraction form
    575,727.90/863,721.45 = 338,948.70/x
  3. Step 3: Cross multiply
    575,727.90x = 863,721.45 × 338,948.70
  4. Step 4: Simplify right side
    575,727.90x = 292,757,262,639.62
  5. Step 5: Solve for x
    x = 292,757,262,639.62/575,727.90
  6. Step 6: Final answer
    x = 508,499.35

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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.