Home / 765,670.86-1,148,506.32-204,690.78

Finding the Fourth Proportional to 765,670.86, 1,148,506.32 and 204,690.78

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Solution

The fourth proportional to 765,670.86, 1,148,506.32 and 204,690.78 is: 307,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,670.86 : 1,148,506.32 = 204,690.78 : x
  2. Step 2: Convert to fraction form
    765,670.86/1,148,506.32 = 204,690.78/x
  3. Step 3: Cross multiply
    765,670.86x = 1,148,506.32 × 204,690.78
  4. Step 4: Simplify right side
    765,670.86x = 235,088,654,475.73
  5. Step 5: Solve for x
    x = 235,088,654,475.73/765,670.86
  6. Step 6: Final answer
    x = 307,036.18

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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.