Home / 990,824.32-1,367,344.56-538,115.32

Finding the Fourth Proportional to 990,824.32, 1,367,344.56 and 538,115.32

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Solution

The fourth proportional to 990,824.32, 1,367,344.56 and 538,115.32 is: 742,602.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,824.32 : 1,367,344.56 = 538,115.32 : x
  2. Step 2: Convert to fraction form
    990,824.32/1,367,344.56 = 538,115.32/x
  3. Step 3: Cross multiply
    990,824.32x = 1,367,344.56 × 538,115.32
  4. Step 4: Simplify right side
    990,824.32x = 735,789,055,454.66
  5. Step 5: Solve for x
    x = 735,789,055,454.66/990,824.32
  6. Step 6: Final answer
    x = 742,602.94

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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.