Home / 753,498.60-1,130,118.30-279,940.20

Finding the Fourth Proportional to 753,498.60, 1,130,118.30 and 279,940.20

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Solution

The fourth proportional to 753,498.60, 1,130,118.30 and 279,940.20 is: 419,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,498.60 : 1,130,118.30 = 279,940.20 : x
  2. Step 2: Convert to fraction form
    753,498.60/1,130,118.30 = 279,940.20/x
  3. Step 3: Cross multiply
    753,498.60x = 1,130,118.30 × 279,940.20
  4. Step 4: Simplify right side
    753,498.60x = 316,365,542,925.66
  5. Step 5: Solve for x
    x = 316,365,542,925.66/753,498.60
  6. Step 6: Final answer
    x = 419,862.15

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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.