Home / 1,329,988.02-1,995,262.25-431,359.74

Finding the Fourth Proportional to 1,329,988.02, 1,995,262.25 and 431,359.74

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Solution

The fourth proportional to 1,329,988.02, 1,995,262.25 and 431,359.74 is: 647,130.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,988.02 : 1,995,262.25 = 431,359.74 : x
  2. Step 2: Convert to fraction form
    1,329,988.02/1,995,262.25 = 431,359.74/x
  3. Step 3: Cross multiply
    1,329,988.02x = 1,995,262.25 × 431,359.74
  4. Step 4: Simplify right side
    1,329,988.02x = 860,675,805,391.82
  5. Step 5: Solve for x
    x = 860,675,805,391.82/1,329,988.02
  6. Step 6: Final answer
    x = 647,130.49

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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.