Home / 1,291,025.39-1,781,590.22-710,214.58

Finding the Fourth Proportional to 1,291,025.39, 1,781,590.22 and 710,214.58

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Solution

The fourth proportional to 1,291,025.39, 1,781,590.22 and 710,214.58 is: 980,082.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,025.39 : 1,781,590.22 = 710,214.58 : x
  2. Step 2: Convert to fraction form
    1,291,025.39/1,781,590.22 = 710,214.58/x
  3. Step 3: Cross multiply
    1,291,025.39x = 1,781,590.22 × 710,214.58
  4. Step 4: Simplify right side
    1,291,025.39x = 1,265,311,340,921.46
  5. Step 5: Solve for x
    x = 1,265,311,340,921.46/1,291,025.39
  6. Step 6: Final answer
    x = 980,082.46

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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.