Home / 739,452.60-1,020,444.56-399,920.84

Finding the Fourth Proportional to 739,452.60, 1,020,444.56 and 399,920.84

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Solution

The fourth proportional to 739,452.60, 1,020,444.56 and 399,920.84 is: 551,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,452.60 : 1,020,444.56 = 399,920.84 : x
  2. Step 2: Convert to fraction form
    739,452.60/1,020,444.56 = 399,920.84/x
  3. Step 3: Cross multiply
    739,452.60x = 1,020,444.56 × 399,920.84
  4. Step 4: Simplify right side
    739,452.60x = 408,097,045,608.63
  5. Step 5: Solve for x
    x = 408,097,045,608.63/739,452.60
  6. Step 6: Final answer
    x = 551,890.74

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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.