Home / 861,237.42-1,188,718.65-667,261.50

Finding the Fourth Proportional to 861,237.42, 1,188,718.65 and 667,261.50

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Solution

The fourth proportional to 861,237.42, 1,188,718.65 and 667,261.50 is: 920,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,237.42 : 1,188,718.65 = 667,261.50 : x
  2. Step 2: Convert to fraction form
    861,237.42/1,188,718.65 = 667,261.50/x
  3. Step 3: Cross multiply
    861,237.42x = 1,188,718.65 × 667,261.50
  4. Step 4: Simplify right side
    861,237.42x = 793,186,189,476.98
  5. Step 5: Solve for x
    x = 793,186,189,476.98/861,237.42
  6. Step 6: Final answer
    x = 920,984.35

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1.5x scale

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.