Home / 1,329,931.54-1,995,177.53-431,303.21

Finding the Fourth Proportional to 1,329,931.54, 1,995,177.53 and 431,303.21

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Solution

The fourth proportional to 1,329,931.54, 1,995,177.53 and 431,303.21 is: 647,045.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,931.54 : 1,995,177.53 = 431,303.21 : x
  2. Step 2: Convert to fraction form
    1,329,931.54/1,995,177.53 = 431,303.21/x
  3. Step 3: Cross multiply
    1,329,931.54x = 1,995,177.53 × 431,303.21
  4. Step 4: Simplify right side
    1,329,931.54x = 860,526,471,052.36
  5. Step 5: Solve for x
    x = 860,526,471,052.36/1,329,931.54
  6. Step 6: Final answer
    x = 647,045.69

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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.