Home / 672,242.80-1,007,478.60-493,913.20

Finding the Fourth Proportional to 672,242.80, 1,007,478.60 and 493,913.20

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Solution

The fourth proportional to 672,242.80, 1,007,478.60 and 493,913.20 is: 740,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,242.80 : 1,007,478.60 = 493,913.20 : x
  2. Step 2: Convert to fraction form
    672,242.80/1,007,478.60 = 493,913.20/x
  3. Step 3: Cross multiply
    672,242.80x = 1,007,478.60 × 493,913.20
  4. Step 4: Simplify right side
    672,242.80x = 497,606,979,257.52
  5. Step 5: Solve for x
    x = 497,606,979,257.52/672,242.80
  6. Step 6: Final answer
    x = 740,219.13

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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.