Home / 1,043,138.20-1,566,608.10-912,501.40

Finding the Fourth Proportional to 1,043,138.20, 1,566,608.10 and 912,501.40

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Solution

The fourth proportional to 1,043,138.20, 1,566,608.10 and 912,501.40 is: 1,370,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043,138.20 : 1,566,608.10 = 912,501.40 : x
  2. Step 2: Convert to fraction form
    1,043,138.20/1,566,608.10 = 912,501.40/x
  3. Step 3: Cross multiply
    1,043,138.20x = 1,566,608.10 × 912,501.40
  4. Step 4: Simplify right side
    1,043,138.20x = 1,429,532,084,501.34
  5. Step 5: Solve for x
    x = 1,429,532,084,501.34/1,043,138.20
  6. Step 6: Final answer
    x = 1,370,414.85

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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.