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Finding the Fourth Proportional to 704,756.16, 972,564.66 and 418,333.68

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Solution

The fourth proportional to 704,756.16, 972,564.66 and 418,333.68 is: 577,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,756.16 : 972,564.66 = 418,333.68 : x
  2. Step 2: Convert to fraction form
    704,756.16/972,564.66 = 418,333.68/x
  3. Step 3: Cross multiply
    704,756.16x = 972,564.66 × 418,333.68
  4. Step 4: Simplify right side
    704,756.16x = 406,856,553,255.75
  5. Step 5: Solve for x
    x = 406,856,553,255.75/704,756.16
  6. Step 6: Final answer
    x = 577,301.17

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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.