Home / 988,590.85-1,482,872.42-389,557.22

Finding the Fourth Proportional to 988,590.85, 1,482,872.42 and 389,557.22

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Solution

The fourth proportional to 988,590.85, 1,482,872.42 and 389,557.22 is: 584,330.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,590.85 : 1,482,872.42 = 389,557.22 : x
  2. Step 2: Convert to fraction form
    988,590.85/1,482,872.42 = 389,557.22/x
  3. Step 3: Cross multiply
    988,590.85x = 1,482,872.42 × 389,557.22
  4. Step 4: Simplify right side
    988,590.85x = 577,663,651,109.40
  5. Step 5: Solve for x
    x = 577,663,651,109.40/988,590.85
  6. Step 6: Final answer
    x = 584,330.37

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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.