Home / 1,341,340.70-2,012,011.05-442,921.10

Finding the Fourth Proportional to 1,341,340.70, 2,012,011.05 and 442,921.10

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Solution

The fourth proportional to 1,341,340.70, 2,012,011.05 and 442,921.10 is: 664,381.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,340.70 : 2,012,011.05 = 442,921.10 : x
  2. Step 2: Convert to fraction form
    1,341,340.70/2,012,011.05 = 442,921.10/x
  3. Step 3: Cross multiply
    1,341,340.70x = 2,012,011.05 × 442,921.10
  4. Step 4: Simplify right side
    1,341,340.70x = 891,162,147,478.16
  5. Step 5: Solve for x
    x = 891,162,147,478.16/1,341,340.70
  6. Step 6: Final answer
    x = 664,381.65

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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.