Home / 979,612.80-1,469,073.60-348,547.20

Finding the Fourth Proportional to 979,612.80, 1,469,073.60 and 348,547.20

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Solution

The fourth proportional to 979,612.80, 1,469,073.60 and 348,547.20 is: 522,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,612.80 : 1,469,073.60 = 348,547.20 : x
  2. Step 2: Convert to fraction form
    979,612.80/1,469,073.60 = 348,547.20/x
  3. Step 3: Cross multiply
    979,612.80x = 1,469,073.60 × 348,547.20
  4. Step 4: Simplify right side
    979,612.80x = 512,041,489,873.92
  5. Step 5: Solve for x
    x = 512,041,489,873.92/979,612.80
  6. Step 6: Final answer
    x = 522,697.84

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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.