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Finding the Fourth Proportional to 403,752.90, 606,285.45 and 292,215.90

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Solution

The fourth proportional to 403,752.90, 606,285.45 and 292,215.90 is: 438,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,752.90 : 606,285.45 = 292,215.90 : x
  2. Step 2: Convert to fraction form
    403,752.90/606,285.45 = 292,215.90/x
  3. Step 3: Cross multiply
    403,752.90x = 606,285.45 × 292,215.90
  4. Step 4: Simplify right side
    403,752.90x = 177,166,248,428.66
  5. Step 5: Solve for x
    x = 177,166,248,428.66/403,752.90
  6. Step 6: Final answer
    x = 438,798.70

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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.