Home / 990,997.20-1,367,689.59-555,532.16

Finding the Fourth Proportional to 990,997.20, 1,367,689.59 and 555,532.16

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Solution

The fourth proportional to 990,997.20, 1,367,689.59 and 555,532.16 is: 766,697.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,997.20 : 1,367,689.59 = 555,532.16 : x
  2. Step 2: Convert to fraction form
    990,997.20/1,367,689.59 = 555,532.16/x
  3. Step 3: Cross multiply
    990,997.20x = 1,367,689.59 × 555,532.16
  4. Step 4: Simplify right side
    990,997.20x = 759,795,550,432.60
  5. Step 5: Solve for x
    x = 759,795,550,432.60/990,997.20
  6. Step 6: Final answer
    x = 766,697.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.