Home / 918,965.34-1,268,230.23-516,583.26

Finding the Fourth Proportional to 918,965.34, 1,268,230.23 and 516,583.26

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Solution

The fourth proportional to 918,965.34, 1,268,230.23 and 516,583.26 is: 712,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,965.34 : 1,268,230.23 = 516,583.26 : x
  2. Step 2: Convert to fraction form
    918,965.34/1,268,230.23 = 516,583.26/x
  3. Step 3: Cross multiply
    918,965.34x = 1,268,230.23 × 516,583.26
  4. Step 4: Simplify right side
    918,965.34x = 655,146,506,643.95
  5. Step 5: Solve for x
    x = 655,146,506,643.95/918,965.34
  6. Step 6: Final answer
    x = 712,917.54

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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.