Home / 918,248.64-1,376,584.08-319,131.96

Finding the Fourth Proportional to 918,248.64, 1,376,584.08 and 319,131.96

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Solution

The fourth proportional to 918,248.64, 1,376,584.08 and 319,131.96 is: 478,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,248.64 : 1,376,584.08 = 319,131.96 : x
  2. Step 2: Convert to fraction form
    918,248.64/1,376,584.08 = 319,131.96/x
  3. Step 3: Cross multiply
    918,248.64x = 1,376,584.08 × 319,131.96
  4. Step 4: Simplify right side
    918,248.64x = 439,311,975,555.20
  5. Step 5: Solve for x
    x = 439,311,975,555.20/918,248.64
  6. Step 6: Final answer
    x = 478,423.77

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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.