Home / 1,087,909.31-1,631,477.82-319,192.47

Finding the Fourth Proportional to 1,087,909.31, 1,631,477.82 and 319,192.47

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Solution

The fourth proportional to 1,087,909.31, 1,631,477.82 and 319,192.47 is: 478,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,909.31 : 1,631,477.82 = 319,192.47 : x
  2. Step 2: Convert to fraction form
    1,087,909.31/1,631,477.82 = 319,192.47/x
  3. Step 3: Cross multiply
    1,087,909.31x = 1,631,477.82 × 319,192.47
  4. Step 4: Simplify right side
    1,087,909.31x = 520,755,435,116.02
  5. Step 5: Solve for x
    x = 520,755,435,116.02/1,087,909.31
  6. Step 6: Final answer
    x = 478,675.41

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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.