Home / 912,543.88-1,369,049.42-379,887.88

Finding the Fourth Proportional to 912,543.88, 1,369,049.42 and 379,887.88

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Solution

The fourth proportional to 912,543.88, 1,369,049.42 and 379,887.88 is: 569,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,543.88 : 1,369,049.42 = 379,887.88 : x
  2. Step 2: Convert to fraction form
    912,543.88/1,369,049.42 = 379,887.88/x
  3. Step 3: Cross multiply
    912,543.88x = 1,369,049.42 × 379,887.88
  4. Step 4: Simplify right side
    912,543.88x = 520,085,281,779.03
  5. Step 5: Solve for x
    x = 520,085,281,779.03/912,543.88
  6. Step 6: Final answer
    x = 569,929.07

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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.