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Finding the Fourth Proportional to 932,738, 1,287,178.44 and 530,330

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Solution

The fourth proportional to 932,738, 1,287,178.44 and 530,330 is: 731,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,738 : 1,287,178.44 = 530,330 : x
  2. Step 2: Convert to fraction form
    932,738/1,287,178.44 = 530,330/x
  3. Step 3: Cross multiply
    932,738x = 1,287,178.44 × 530,330
  4. Step 4: Simplify right side
    932,738x = 682,629,342,085.20
  5. Step 5: Solve for x
    x = 682,629,342,085.20/932,738
  6. Step 6: Final answer
    x = 731,855.40

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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.