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Finding the Fourth Proportional to 521,607.32, 719,835.80 and 292,174.48

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Solution

The fourth proportional to 521,607.32, 719,835.80 and 292,174.48 is: 403,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,607.32 : 719,835.80 = 292,174.48 : x
  2. Step 2: Convert to fraction form
    521,607.32/719,835.80 = 292,174.48/x
  3. Step 3: Cross multiply
    521,607.32x = 719,835.80 × 292,174.48
  4. Step 4: Simplify right side
    521,607.32x = 210,317,650,550.38
  5. Step 5: Solve for x
    x = 210,317,650,550.38/521,607.32
  6. Step 6: Final answer
    x = 403,210.70

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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.