Home / 739,469.34-1,020,467.52-399,937.50

Finding the Fourth Proportional to 739,469.34, 1,020,467.52 and 399,937.50

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Solution

The fourth proportional to 739,469.34, 1,020,467.52 and 399,937.50 is: 551,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,469.34 : 1,020,467.52 = 399,937.50 : x
  2. Step 2: Convert to fraction form
    739,469.34/1,020,467.52 = 399,937.50/x
  3. Step 3: Cross multiply
    739,469.34x = 1,020,467.52 × 399,937.50
  4. Step 4: Simplify right side
    739,469.34x = 408,123,228,780
  5. Step 5: Solve for x
    x = 408,123,228,780/739,469.34
  6. Step 6: Final answer
    x = 551,913.66

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1.5x scale

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.