Home / 748,703.28-1,123,579.80-432,725.52

Finding the Fourth Proportional to 748,703.28, 1,123,579.80 and 432,725.52

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Solution

The fourth proportional to 748,703.28, 1,123,579.80 and 432,725.52 is: 649,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,703.28 : 1,123,579.80 = 432,725.52 : x
  2. Step 2: Convert to fraction form
    748,703.28/1,123,579.80 = 432,725.52/x
  3. Step 3: Cross multiply
    748,703.28x = 1,123,579.80 × 432,725.52
  4. Step 4: Simplify right side
    748,703.28x = 486,201,653,216.50
  5. Step 5: Solve for x
    x = 486,201,653,216.50/748,703.28
  6. Step 6: Final answer
    x = 649,391.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.