Home / 502,802.08-693,669.60-287,826.72

Finding the Fourth Proportional to 502,802.08, 693,669.60 and 287,826.72

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Solution

The fourth proportional to 502,802.08, 693,669.60 and 287,826.72 is: 397,087.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,802.08 : 693,669.60 = 287,826.72 : x
  2. Step 2: Convert to fraction form
    502,802.08/693,669.60 = 287,826.72/x
  3. Step 3: Cross multiply
    502,802.08x = 693,669.60 × 287,826.72
  4. Step 4: Simplify right side
    502,802.08x = 199,656,645,731.71
  5. Step 5: Solve for x
    x = 199,656,645,731.71/502,802.08
  6. Step 6: Final answer
    x = 397,087.95

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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.