Home / 384,916.60-576,597.30-266,721.40

Finding the Fourth Proportional to 384,916.60, 576,597.30 and 266,721.40

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Solution

The fourth proportional to 384,916.60, 576,597.30 and 266,721.40 is: 399,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,916.60 : 576,597.30 = 266,721.40 : x
  2. Step 2: Convert to fraction form
    384,916.60/576,597.30 = 266,721.40/x
  3. Step 3: Cross multiply
    384,916.60x = 576,597.30 × 266,721.40
  4. Step 4: Simplify right side
    384,916.60x = 153,790,839,092.22
  5. Step 5: Solve for x
    x = 153,790,839,092.22/384,916.60
  6. Step 6: Final answer
    x = 399,543.28

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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.