Home / 985,600.36-1,477,764.90-386,622.04

Finding the Fourth Proportional to 985,600.36, 1,477,764.90 and 386,622.04

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Solution

The fourth proportional to 985,600.36, 1,477,764.90 and 386,622.04 is: 579,683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,600.36 : 1,477,764.90 = 386,622.04 : x
  2. Step 2: Convert to fraction form
    985,600.36/1,477,764.90 = 386,622.04/x
  3. Step 3: Cross multiply
    985,600.36x = 1,477,764.90 × 386,622.04
  4. Step 4: Simplify right side
    985,600.36x = 571,336,480,278.40
  5. Step 5: Solve for x
    x = 571,336,480,278.40/985,600.36
  6. Step 6: Final answer
    x = 579,683.72

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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.