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Finding the Fourth Proportional to 757,481, 1,045,345.65 and 417,971.12

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Solution

The fourth proportional to 757,481, 1,045,345.65 and 417,971.12 is: 576,812.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,481 : 1,045,345.65 = 417,971.12 : x
  2. Step 2: Convert to fraction form
    757,481/1,045,345.65 = 417,971.12/x
  3. Step 3: Cross multiply
    757,481x = 1,045,345.65 × 417,971.12
  4. Step 4: Simplify right side
    757,481x = 436,924,292,117.63
  5. Step 5: Solve for x
    x = 436,924,292,117.63/757,481
  6. Step 6: Final answer
    x = 576,812.21

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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.