Home / 1,079,806-1,490,132.40-627,126.16

Finding the Fourth Proportional to 1,079,806, 1,490,132.40 and 627,126.16

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Solution

The fourth proportional to 1,079,806, 1,490,132.40 and 627,126.16 is: 865,434.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,806 : 1,490,132.40 = 627,126.16 : x
  2. Step 2: Convert to fraction form
    1,079,806/1,490,132.40 = 627,126.16/x
  3. Step 3: Cross multiply
    1,079,806x = 1,490,132.40 × 627,126.16
  4. Step 4: Simplify right side
    1,079,806x = 934,501,009,903.58
  5. Step 5: Solve for x
    x = 934,501,009,903.58/1,079,806
  6. Step 6: Final answer
    x = 865,434.17

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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.