Home / 840,862.56-1,260,543.72-308,259.22

Finding the Fourth Proportional to 840,862.56, 1,260,543.72 and 308,259.22

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Solution

The fourth proportional to 840,862.56, 1,260,543.72 and 308,259.22 is: 462,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,862.56 : 1,260,543.72 = 308,259.22 : x
  2. Step 2: Convert to fraction form
    840,862.56/1,260,543.72 = 308,259.22/x
  3. Step 3: Cross multiply
    840,862.56x = 1,260,543.72 × 308,259.22
  4. Step 4: Simplify right side
    840,862.56x = 388,574,223,903.10
  5. Step 5: Solve for x
    x = 388,574,223,903.10/840,862.56
  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.