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Finding the Fourth Proportional to 791,532, 1,187,298 and 348,300

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Solution

The fourth proportional to 791,532, 1,187,298 and 348,300 is: 522,450

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,532 : 1,187,298 = 348,300 : x
  2. Step 2: Convert to fraction form
    791,532/1,187,298 = 348,300/x
  3. Step 3: Cross multiply
    791,532x = 1,187,298 × 348,300
  4. Step 4: Simplify right side
    791,532x = 413,535,893,400
  5. Step 5: Solve for x
    x = 413,535,893,400/791,532
  6. Step 6: Final answer
    x = 522,450

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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.