Home / 739,522.83-1,020,539.46-399,990.27

Finding the Fourth Proportional to 739,522.83, 1,020,539.46 and 399,990.27

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Solution

The fourth proportional to 739,522.83, 1,020,539.46 and 399,990.27 is: 551,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,522.83 : 1,020,539.46 = 399,990.27 : x
  2. Step 2: Convert to fraction form
    739,522.83/1,020,539.46 = 399,990.27/x
  3. Step 3: Cross multiply
    739,522.83x = 1,020,539.46 × 399,990.27
  4. Step 4: Simplify right side
    739,522.83x = 408,205,854,151.05
  5. Step 5: Solve for x
    x = 408,205,854,151.05/739,522.83
  6. Step 6: Final answer
    x = 551,985.47

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Double scale
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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.