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Finding the Fourth Proportional to 520,562.50, 718,412.86 and 291,141.13

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Solution

The fourth proportional to 520,562.50, 718,412.86 and 291,141.13 is: 401,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,562.50 : 718,412.86 = 291,141.13 : x
  2. Step 2: Convert to fraction form
    520,562.50/718,412.86 = 291,141.13/x
  3. Step 3: Cross multiply
    520,562.50x = 718,412.86 × 291,141.13
  4. Step 4: Simplify right side
    520,562.50x = 209,159,531,866.93
  5. Step 5: Solve for x
    x = 209,159,531,866.93/520,562.50
  6. Step 6: Final answer
    x = 401,795.23

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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.