Home / 745,581.52-1,028,931.62-423,321.60

Finding the Fourth Proportional to 745,581.52, 1,028,931.62 and 423,321.60

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Solution

The fourth proportional to 745,581.52, 1,028,931.62 and 423,321.60 is: 584,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,581.52 : 1,028,931.62 = 423,321.60 : x
  2. Step 2: Convert to fraction form
    745,581.52/1,028,931.62 = 423,321.60/x
  3. Step 3: Cross multiply
    745,581.52x = 1,028,931.62 × 423,321.60
  4. Step 4: Simplify right side
    745,581.52x = 435,568,977,552.38
  5. Step 5: Solve for x
    x = 435,568,977,552.38/745,581.52
  6. Step 6: Final answer
    x = 584,200.34

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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.