Home / 1,329,931.79-1,995,177.90-431,303.46

Finding the Fourth Proportional to 1,329,931.79, 1,995,177.90 and 431,303.46

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Solution

The fourth proportional to 1,329,931.79, 1,995,177.90 and 431,303.46 is: 647,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,931.79 : 1,995,177.90 = 431,303.46 : x
  2. Step 2: Convert to fraction form
    1,329,931.79/1,995,177.90 = 431,303.46/x
  3. Step 3: Cross multiply
    1,329,931.79x = 1,995,177.90 × 431,303.46
  4. Step 4: Simplify right side
    1,329,931.79x = 860,527,131,585.53
  5. Step 5: Solve for x
    x = 860,527,131,585.53/1,329,931.79
  6. Step 6: Final answer
    x = 647,046.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.