Home / 739,458.60-1,020,452.86-399,926.85

Finding the Fourth Proportional to 739,458.60, 1,020,452.86 and 399,926.85

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Solution

The fourth proportional to 739,458.60, 1,020,452.86 and 399,926.85 is: 551,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,458.60 : 1,020,452.86 = 399,926.85 : x
  2. Step 2: Convert to fraction form
    739,458.60/1,020,452.86 = 399,926.85/x
  3. Step 3: Cross multiply
    739,458.60x = 1,020,452.86 × 399,926.85
  4. Step 4: Simplify right side
    739,458.60x = 408,106,497,873.29
  5. Step 5: Solve for x
    x = 408,106,497,873.29/739,458.60
  6. Step 6: Final answer
    x = 551,899.05

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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.