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Finding the Fourth Proportional to 1,147,681.82, 1,721,732.88 and 473,395.28

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Solution

The fourth proportional to 1,147,681.82, 1,721,732.88 and 473,395.28 is: 710,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,681.82 : 1,721,732.88 = 473,395.28 : x
  2. Step 2: Convert to fraction form
    1,147,681.82/1,721,732.88 = 473,395.28/x
  3. Step 3: Cross multiply
    1,147,681.82x = 1,721,732.88 × 473,395.28
  4. Step 4: Simplify right side
    1,147,681.82x = 815,060,210,204.14
  5. Step 5: Solve for x
    x = 815,060,210,204.14/1,147,681.82
  6. Step 6: Final answer
    x = 710,179.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.