Home / 977,515.20-1,466,272.80-842,212.80

Finding the Fourth Proportional to 977,515.20, 1,466,272.80 and 842,212.80

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Solution

The fourth proportional to 977,515.20, 1,466,272.80 and 842,212.80 is: 1,263,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,515.20 : 1,466,272.80 = 842,212.80 : x
  2. Step 2: Convert to fraction form
    977,515.20/1,466,272.80 = 842,212.80/x
  3. Step 3: Cross multiply
    977,515.20x = 1,466,272.80 × 842,212.80
  4. Step 4: Simplify right side
    977,515.20x = 1,234,913,720,451.84
  5. Step 5: Solve for x
    x = 1,234,913,720,451.84/977,515.20
  6. Step 6: Final answer
    x = 1,263,319.20

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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.