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Finding the Fourth Proportional to 559,435.60, 838,165.20 and 540,935.20

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Solution

The fourth proportional to 559,435.60, 838,165.20 and 540,935.20 is: 810,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,435.60 : 838,165.20 = 540,935.20 : x
  2. Step 2: Convert to fraction form
    559,435.60/838,165.20 = 540,935.20/x
  3. Step 3: Cross multiply
    559,435.60x = 838,165.20 × 540,935.20
  4. Step 4: Simplify right side
    559,435.60x = 453,393,060,095.04
  5. Step 5: Solve for x
    x = 453,393,060,095.04/559,435.60
  6. Step 6: Final answer
    x = 810,447.28

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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.