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Finding the Fourth Proportional to 559,315.53, 771,854.27 and 304,666.11

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Solution

The fourth proportional to 559,315.53, 771,854.27 and 304,666.11 is: 420,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,315.53 : 771,854.27 = 304,666.11 : x
  2. Step 2: Convert to fraction form
    559,315.53/771,854.27 = 304,666.11/x
  3. Step 3: Cross multiply
    559,315.53x = 771,854.27 × 304,666.11
  4. Step 4: Simplify right side
    559,315.53x = 235,157,836,404.46
  5. Step 5: Solve for x
    x = 235,157,836,404.46/559,315.53
  6. Step 6: Final answer
    x = 420,438.60

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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.