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Finding the Fourth Proportional to 559,185.24, 771,697.48 and 317,490.32

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Solution

The fourth proportional to 559,185.24, 771,697.48 and 317,490.32 is: 438,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,185.24 : 771,697.48 = 317,490.32 : x
  2. Step 2: Convert to fraction form
    559,185.24/771,697.48 = 317,490.32/x
  3. Step 3: Cross multiply
    559,185.24x = 771,697.48 × 317,490.32
  4. Step 4: Simplify right side
    559,185.24x = 245,006,479,868.39
  5. Step 5: Solve for x
    x = 245,006,479,868.39/559,185.24
  6. Step 6: Final answer
    x = 438,149.05

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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.