Home / 747,427.70-1,031,449.92-407,895.95

Finding the Fourth Proportional to 747,427.70, 1,031,449.92 and 407,895.95

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Solution

The fourth proportional to 747,427.70, 1,031,449.92 and 407,895.95 is: 562,896.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,427.70 : 1,031,449.92 = 407,895.95 : x
  2. Step 2: Convert to fraction form
    747,427.70/1,031,449.92 = 407,895.95/x
  3. Step 3: Cross multiply
    747,427.70x = 1,031,449.92 × 407,895.95
  4. Step 4: Simplify right side
    747,427.70x = 420,724,239,838.57
  5. Step 5: Solve for x
    x = 420,724,239,838.57/747,427.70
  6. Step 6: Final answer
    x = 562,896.24

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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.