Home / 745,381.74-1,028,639.25-423,101.73

Finding the Fourth Proportional to 745,381.74, 1,028,639.25 and 423,101.73

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Solution

The fourth proportional to 745,381.74, 1,028,639.25 and 423,101.73 is: 583,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,381.74 : 1,028,639.25 = 423,101.73 : x
  2. Step 2: Convert to fraction form
    745,381.74/1,028,639.25 = 423,101.73/x
  3. Step 3: Cross multiply
    745,381.74x = 1,028,639.25 × 423,101.73
  4. Step 4: Simplify right side
    745,381.74x = 435,219,046,220.90
  5. Step 5: Solve for x
    x = 435,219,046,220.90/745,381.74
  6. Step 6: Final answer
    x = 583,887.45

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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.