Home / 747,427.57-1,031,449.75-407,895.82

Finding the Fourth Proportional to 747,427.57, 1,031,449.75 and 407,895.82

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Solution

The fourth proportional to 747,427.57, 1,031,449.75 and 407,895.82 is: 562,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,427.57 : 1,031,449.75 = 407,895.82 : x
  2. Step 2: Convert to fraction form
    747,427.57/1,031,449.75 = 407,895.82/x
  3. Step 3: Cross multiply
    747,427.57x = 1,031,449.75 × 407,895.82
  4. Step 4: Simplify right side
    747,427.57x = 420,724,041,565.05
  5. Step 5: Solve for x
    x = 420,724,041,565.05/747,427.57
  6. Step 6: Final answer
    x = 562,896.07

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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.