Home / 745,357.14-1,028,685.42-423,171.54

Finding the Fourth Proportional to 745,357.14, 1,028,685.42 and 423,171.54

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Solution

The fourth proportional to 745,357.14, 1,028,685.42 and 423,171.54 is: 584,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,357.14 : 1,028,685.42 = 423,171.54 : x
  2. Step 2: Convert to fraction form
    745,357.14/1,028,685.42 = 423,171.54/x
  3. Step 3: Cross multiply
    745,357.14x = 1,028,685.42 × 423,171.54
  4. Step 4: Simplify right side
    745,357.14x = 435,310,393,356.95
  5. Step 5: Solve for x
    x = 435,310,393,356.95/745,357.14
  6. Step 6: Final answer
    x = 584,029.28

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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.