Home / 986,077.31-1,478,448.52-386,664.35

Finding the Fourth Proportional to 986,077.31, 1,478,448.52 and 386,664.35

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Solution

The fourth proportional to 986,077.31, 1,478,448.52 and 386,664.35 is: 579,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,077.31 : 1,478,448.52 = 386,664.35 : x
  2. Step 2: Convert to fraction form
    986,077.31/1,478,448.52 = 386,664.35/x
  3. Step 3: Cross multiply
    986,077.31x = 1,478,448.52 × 386,664.35
  4. Step 4: Simplify right side
    986,077.31x = 571,663,327,635.36
  5. Step 5: Solve for x
    x = 571,663,327,635.36/986,077.31
  6. Step 6: Final answer
    x = 579,734.80

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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.