Home / 739,448.58-1,020,439.05-399,916.83

Finding the Fourth Proportional to 739,448.58, 1,020,439.05 and 399,916.83

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Solution

The fourth proportional to 739,448.58, 1,020,439.05 and 399,916.83 is: 551,885.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,448.58 : 1,020,439.05 = 399,916.83 : x
  2. Step 2: Convert to fraction form
    739,448.58/1,020,439.05 = 399,916.83/x
  3. Step 3: Cross multiply
    739,448.58x = 1,020,439.05 × 399,916.83
  4. Step 4: Simplify right side
    739,448.58x = 408,090,752,411.17
  5. Step 5: Solve for x
    x = 408,090,752,411.17/739,448.58
  6. Step 6: Final answer
    x = 551,885.23

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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.