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Finding the Fourth Proportional to 611,476.83, 843,915.85 and 369,761.15

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Solution

The fourth proportional to 611,476.83, 843,915.85 and 369,761.15 is: 510,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,476.83 : 843,915.85 = 369,761.15 : x
  2. Step 2: Convert to fraction form
    611,476.83/843,915.85 = 369,761.15/x
  3. Step 3: Cross multiply
    611,476.83x = 843,915.85 × 369,761.15
  4. Step 4: Simplify right side
    611,476.83x = 312,047,296,384.61
  5. Step 5: Solve for x
    x = 312,047,296,384.61/611,476.83
  6. Step 6: Final answer
    x = 510,317.45

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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.