Home / 2,620,948.80-3,931,423.20-1,781,140.80

Finding the Fourth Proportional to 2,620,948.80, 3,931,423.20 and 1,781,140.80

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Solution

The fourth proportional to 2,620,948.80, 3,931,423.20 and 1,781,140.80 is: 2,671,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,948.80 : 3,931,423.20 = 1,781,140.80 : x
  2. Step 2: Convert to fraction form
    2,620,948.80/3,931,423.20 = 1,781,140.80/x
  3. Step 3: Cross multiply
    2,620,948.80x = 3,931,423.20 × 1,781,140.80
  4. Step 4: Simplify right side
    2,620,948.80x = 7,002,418,263,586.56
  5. Step 5: Solve for x
    x = 7,002,418,263,586.56/2,620,948.80
  6. Step 6: Final answer
    x = 2,671,711.20

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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.