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Finding the Fourth Proportional to 704,607.93, 972,611.10 and 418,127.94

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Solution

The fourth proportional to 704,607.93, 972,611.10 and 418,127.94 is: 577,166.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,607.93 : 972,611.10 = 418,127.94 : x
  2. Step 2: Convert to fraction form
    704,607.93/972,611.10 = 418,127.94/x
  3. Step 3: Cross multiply
    704,607.93x = 972,611.10 × 418,127.94
  4. Step 4: Simplify right side
    704,607.93x = 406,675,875,664.13
  5. Step 5: Solve for x
    x = 406,675,875,664.13/704,607.93
  6. Step 6: Final answer
    x = 577,166.19

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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.