Home / 747,474.12-1,031,499.90-407,944.80

Finding the Fourth Proportional to 747,474.12, 1,031,499.90 and 407,944.80

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Solution

The fourth proportional to 747,474.12, 1,031,499.90 and 407,944.80 is: 562,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,474.12 : 1,031,499.90 = 407,944.80 : x
  2. Step 2: Convert to fraction form
    747,474.12/1,031,499.90 = 407,944.80/x
  3. Step 3: Cross multiply
    747,474.12x = 1,031,499.90 × 407,944.80
  4. Step 4: Simplify right side
    747,474.12x = 420,795,020,405.52
  5. Step 5: Solve for x
    x = 420,795,020,405.52/747,474.12
  6. Step 6: Final answer
    x = 562,955.97

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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.