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Finding the Fourth Proportional to 578,807.63, 864,082.15 and 540,342.94

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Solution

The fourth proportional to 578,807.63, 864,082.15 and 540,342.94 is: 806,659.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,807.63 : 864,082.15 = 540,342.94 : x
  2. Step 2: Convert to fraction form
    578,807.63/864,082.15 = 540,342.94/x
  3. Step 3: Cross multiply
    578,807.63x = 864,082.15 × 540,342.94
  4. Step 4: Simplify right side
    578,807.63x = 466,900,691,979.49
  5. Step 5: Solve for x
    x = 466,900,691,979.49/578,807.63
  6. Step 6: Final answer
    x = 806,659.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.