Home / 745,035.60-1,028,171.28-458,720.76

Finding the Fourth Proportional to 745,035.60, 1,028,171.28 and 458,720.76

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Solution

The fourth proportional to 745,035.60, 1,028,171.28 and 458,720.76 is: 633,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,035.60 : 1,028,171.28 = 458,720.76 : x
  2. Step 2: Convert to fraction form
    745,035.60/1,028,171.28 = 458,720.76/x
  3. Step 3: Cross multiply
    745,035.60x = 1,028,171.28 × 458,720.76
  4. Step 4: Simplify right side
    745,035.60x = 471,643,510,971.77
  5. Step 5: Solve for x
    x = 471,643,510,971.77/745,035.60
  6. Step 6: Final answer
    x = 633,048.29

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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.