Home / 1,341,815.40-2,012,139.90-442,909.80

Finding the Fourth Proportional to 1,341,815.40, 2,012,139.90 and 442,909.80

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Solution

The fourth proportional to 1,341,815.40, 2,012,139.90 and 442,909.80 is: 664,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,815.40 : 2,012,139.90 = 442,909.80 : x
  2. Step 2: Convert to fraction form
    1,341,815.40/2,012,139.90 = 442,909.80/x
  3. Step 3: Cross multiply
    1,341,815.40x = 2,012,139.90 × 442,909.80
  4. Step 4: Simplify right side
    1,341,815.40x = 891,196,480,681.02
  5. Step 5: Solve for x
    x = 891,196,480,681.02/1,341,815.40
  6. Step 6: Final answer
    x = 664,172.20

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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.