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Finding the Fourth Proportional to 519,929.32, 717,379.47 and 302,008.54

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Solution

The fourth proportional to 519,929.32, 717,379.47 and 302,008.54 is: 416,700.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,929.32 : 717,379.47 = 302,008.54 : x
  2. Step 2: Convert to fraction form
    519,929.32/717,379.47 = 302,008.54/x
  3. Step 3: Cross multiply
    519,929.32x = 717,379.47 × 302,008.54
  4. Step 4: Simplify right side
    519,929.32x = 216,654,721,263.73
  5. Step 5: Solve for x
    x = 216,654,721,263.73/519,929.32
  6. Step 6: Final answer
    x = 416,700.34

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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.