Home / 1,386,881.28-1,913,898.77-775,034.04

Finding the Fourth Proportional to 1,386,881.28, 1,913,898.77 and 775,034.04

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Solution

The fourth proportional to 1,386,881.28, 1,913,898.77 and 775,034.04 is: 1,069,548.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,881.28 : 1,913,898.77 = 775,034.04 : x
  2. Step 2: Convert to fraction form
    1,386,881.28/1,913,898.77 = 775,034.04/x
  3. Step 3: Cross multiply
    1,386,881.28x = 1,913,898.77 × 775,034.04
  4. Step 4: Simplify right side
    1,386,881.28x = 1,483,336,691,988.96
  5. Step 5: Solve for x
    x = 1,483,336,691,988.96/1,386,881.28
  6. Step 6: Final answer
    x = 1,069,548.43

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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.