Home / 745,581.73-1,028,931.92-423,321.81

Finding the Fourth Proportional to 745,581.73, 1,028,931.92 and 423,321.81

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Solution

The fourth proportional to 745,581.73, 1,028,931.92 and 423,321.81 is: 584,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,581.73 : 1,028,931.92 = 423,321.81 : x
  2. Step 2: Convert to fraction form
    745,581.73/1,028,931.92 = 423,321.81/x
  3. Step 3: Cross multiply
    745,581.73x = 1,028,931.92 × 423,321.81
  4. Step 4: Simplify right side
    745,581.73x = 435,569,322,741.18
  5. Step 5: Solve for x
    x = 435,569,322,741.18/745,581.73
  6. Step 6: Final answer
    x = 584,200.64

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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.