Home / 745,581.39-1,028,931.44-423,321.47

Finding the Fourth Proportional to 745,581.39, 1,028,931.44 and 423,321.47

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Solution

The fourth proportional to 745,581.39, 1,028,931.44 and 423,321.47 is: 584,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,581.39 : 1,028,931.44 = 423,321.47 : x
  2. Step 2: Convert to fraction form
    745,581.39/1,028,931.44 = 423,321.47/x
  3. Step 3: Cross multiply
    745,581.39x = 1,028,931.44 × 423,321.47
  4. Step 4: Simplify right side
    745,581.39x = 435,568,773,340.65
  5. Step 5: Solve for x
    x = 435,568,773,340.65/745,581.39
  6. Step 6: Final answer
    x = 584,200.17

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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.