Home / 747,680.85-1,031,786.19-425,384.01

Finding the Fourth Proportional to 747,680.85, 1,031,786.19 and 425,384.01

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Solution

The fourth proportional to 747,680.85, 1,031,786.19 and 425,384.01 is: 587,022.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,680.85 : 1,031,786.19 = 425,384.01 : x
  2. Step 2: Convert to fraction form
    747,680.85/1,031,786.19 = 425,384.01/x
  3. Step 3: Cross multiply
    747,680.85x = 1,031,786.19 × 425,384.01
  4. Step 4: Simplify right side
    747,680.85x = 438,905,346,964.82
  5. Step 5: Solve for x
    x = 438,905,346,964.82/747,680.85
  6. Step 6: Final answer
    x = 587,022.32

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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.