Home / 840,862.06-1,260,542.96-308,258.72

Finding the Fourth Proportional to 840,862.06, 1,260,542.96 and 308,258.72

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Solution

The fourth proportional to 840,862.06, 1,260,542.96 and 308,258.72 is: 462,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,862.06 : 1,260,542.96 = 308,258.72 : x
  2. Step 2: Convert to fraction form
    840,862.06/1,260,542.96 = 308,258.72/x
  3. Step 3: Cross multiply
    840,862.06x = 1,260,542.96 × 308,258.72
  4. Step 4: Simplify right side
    840,862.06x = 388,573,359,354.61
  5. Step 5: Solve for x
    x = 388,573,359,354.61/840,862.06
  6. Step 6: Final answer
    x = 462,113.08

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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.