Home / 700,087.20-1,048,287.60-512,080.80

Finding the Fourth Proportional to 700,087.20, 1,048,287.60 and 512,080.80

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Solution

The fourth proportional to 700,087.20, 1,048,287.60 and 512,080.80 is: 766,772.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,087.20 : 1,048,287.60 = 512,080.80 : x
  2. Step 2: Convert to fraction form
    700,087.20/1,048,287.60 = 512,080.80/x
  3. Step 3: Cross multiply
    700,087.20x = 1,048,287.60 × 512,080.80
  4. Step 4: Simplify right side
    700,087.20x = 536,807,952,838.08
  5. Step 5: Solve for x
    x = 536,807,952,838.08/700,087.20
  6. Step 6: Final answer
    x = 766,772.99

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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.