Home / 765,246.64-1,056,035.40-421,103.56

Finding the Fourth Proportional to 765,246.64, 1,056,035.40 and 421,103.56

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Solution

The fourth proportional to 765,246.64, 1,056,035.40 and 421,103.56 is: 581,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,246.64 : 1,056,035.40 = 421,103.56 : x
  2. Step 2: Convert to fraction form
    765,246.64/1,056,035.40 = 421,103.56/x
  3. Step 3: Cross multiply
    765,246.64x = 1,056,035.40 × 421,103.56
  4. Step 4: Simplify right side
    765,246.64x = 444,700,266,426.02
  5. Step 5: Solve for x
    x = 444,700,266,426.02/765,246.64
  6. Step 6: Final answer
    x = 581,120.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.