Home / 1,520,176.80-2,280,265.20-398,359.20

Finding the Fourth Proportional to 1,520,176.80, 2,280,265.20 and 398,359.20

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Solution

The fourth proportional to 1,520,176.80, 2,280,265.20 and 398,359.20 is: 597,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,176.80 : 2,280,265.20 = 398,359.20 : x
  2. Step 2: Convert to fraction form
    1,520,176.80/2,280,265.20 = 398,359.20/x
  3. Step 3: Cross multiply
    1,520,176.80x = 2,280,265.20 × 398,359.20
  4. Step 4: Simplify right side
    1,520,176.80x = 908,364,620,859.84
  5. Step 5: Solve for x
    x = 908,364,620,859.84/1,520,176.80
  6. Step 6: Final answer
    x = 597,538.80

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1.5x scale

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.