Home / 1,878,490-2,592,316.20-1,073,691.28

Finding the Fourth Proportional to 1,878,490, 2,592,316.20 and 1,073,691.28

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Solution

The fourth proportional to 1,878,490, 2,592,316.20 and 1,073,691.28 is: 1,481,693.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,490 : 2,592,316.20 = 1,073,691.28 : x
  2. Step 2: Convert to fraction form
    1,878,490/2,592,316.20 = 1,073,691.28/x
  3. Step 3: Cross multiply
    1,878,490x = 2,592,316.20 × 1,073,691.28
  4. Step 4: Simplify right side
    1,878,490x = 2,783,347,298,942.74
  5. Step 5: Solve for x
    x = 2,783,347,298,942.74/1,878,490
  6. Step 6: Final answer
    x = 1,481,693.97

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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.