Home / 985,659.16-1,478,648.22-386,295.28

Finding the Fourth Proportional to 985,659.16, 1,478,648.22 and 386,295.28

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Solution

The fourth proportional to 985,659.16, 1,478,648.22 and 386,295.28 is: 579,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,659.16 : 1,478,648.22 = 386,295.28 : x
  2. Step 2: Convert to fraction form
    985,659.16/1,478,648.22 = 386,295.28/x
  3. Step 3: Cross multiply
    985,659.16x = 1,478,648.22 × 386,295.28
  4. Step 4: Simplify right side
    985,659.16x = 571,194,828,166.40
  5. Step 5: Solve for x
    x = 571,194,828,166.40/985,659.16
  6. Step 6: Final answer
    x = 579,505.42

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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.