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Finding the Fourth Proportional to 559,160.16, 838,040.31 and 440,362.32

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Solution

The fourth proportional to 559,160.16, 838,040.31 and 440,362.32 is: 659,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,160.16 : 838,040.31 = 440,362.32 : x
  2. Step 2: Convert to fraction form
    559,160.16/838,040.31 = 440,362.32/x
  3. Step 3: Cross multiply
    559,160.16x = 838,040.31 × 440,362.32
  4. Step 4: Simplify right side
    559,160.16x = 369,041,375,165.12
  5. Step 5: Solve for x
    x = 369,041,375,165.12/559,160.16
  6. Step 6: Final answer
    x = 659,992.26

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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.