Home / 1,553,281.31-2,329,951.23-431,379.47

Finding the Fourth Proportional to 1,553,281.31, 2,329,951.23 and 431,379.47

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Solution

The fourth proportional to 1,553,281.31, 2,329,951.23 and 431,379.47 is: 647,077.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,281.31 : 2,329,951.23 = 431,379.47 : x
  2. Step 2: Convert to fraction form
    1,553,281.31/2,329,951.23 = 431,379.47/x
  3. Step 3: Cross multiply
    1,553,281.31x = 2,329,951.23 × 431,379.47
  4. Step 4: Simplify right side
    1,553,281.31x = 1,005,093,132,548.13
  5. Step 5: Solve for x
    x = 1,005,093,132,548.13/1,553,281.31
  6. Step 6: Final answer
    x = 647,077.34

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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.