Home / 823,656.60-1,234,901.70-318,022.20

Finding the Fourth Proportional to 823,656.60, 1,234,901.70 and 318,022.20

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Solution

The fourth proportional to 823,656.60, 1,234,901.70 and 318,022.20 is: 476,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,656.60 : 1,234,901.70 = 318,022.20 : x
  2. Step 2: Convert to fraction form
    823,656.60/1,234,901.70 = 318,022.20/x
  3. Step 3: Cross multiply
    823,656.60x = 1,234,901.70 × 318,022.20
  4. Step 4: Simplify right side
    823,656.60x = 392,726,155,417.74
  5. Step 5: Solve for x
    x = 392,726,155,417.74/823,656.60
  6. Step 6: Final answer
    x = 476,808.12

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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.