Home / 768,543.20-1,152,123.60-502,431.20

Finding the Fourth Proportional to 768,543.20, 1,152,123.60 and 502,431.20

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Solution

The fourth proportional to 768,543.20, 1,152,123.60 and 502,431.20 is: 753,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,543.20 : 1,152,123.60 = 502,431.20 : x
  2. Step 2: Convert to fraction form
    768,543.20/1,152,123.60 = 502,431.20/x
  3. Step 3: Cross multiply
    768,543.20x = 1,152,123.60 × 502,431.20
  4. Step 4: Simplify right side
    768,543.20x = 578,862,842,896.32
  5. Step 5: Solve for x
    x = 578,862,842,896.32/768,543.20
  6. Step 6: Final answer
    x = 753,194.93

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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.