Home / 415,436.30-623,259.51-115,916.74

Finding the Fourth Proportional to 415,436.30, 623,259.51 and 115,916.74

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Solution

The fourth proportional to 415,436.30, 623,259.51 and 115,916.74 is: 173,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,436.30 : 623,259.51 = 115,916.74 : x
  2. Step 2: Convert to fraction form
    415,436.30/623,259.51 = 115,916.74/x
  3. Step 3: Cross multiply
    415,436.30x = 623,259.51 × 115,916.74
  4. Step 4: Simplify right side
    415,436.30x = 72,246,210,573.20
  5. Step 5: Solve for x
    x = 72,246,210,573.20/415,436.30
  6. Step 6: Final answer
    x = 173,904.42

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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.