Home / 840,862.58-1,260,543.72-308,259.23

Finding the Fourth Proportional to 840,862.58, 1,260,543.72 and 308,259.23

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Solution

The fourth proportional to 840,862.58, 1,260,543.72 and 308,259.23 is: 462,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,862.58 : 1,260,543.72 = 308,259.23 : x
  2. Step 2: Convert to fraction form
    840,862.58/1,260,543.72 = 308,259.23/x
  3. Step 3: Cross multiply
    840,862.58x = 1,260,543.72 × 308,259.23
  4. Step 4: Simplify right side
    840,862.58x = 388,574,236,508.54
  5. Step 5: Solve for x
    x = 388,574,236,508.54/840,862.58
  6. Step 6: Final answer
    x = 462,113.84

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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.