Home / 861,871.29-1,292,803.42-262,830.70

Finding the Fourth Proportional to 861,871.29, 1,292,803.42 and 262,830.70

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Solution

The fourth proportional to 861,871.29, 1,292,803.42 and 262,830.70 is: 394,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,871.29 : 1,292,803.42 = 262,830.70 : x
  2. Step 2: Convert to fraction form
    861,871.29/1,292,803.42 = 262,830.70/x
  3. Step 3: Cross multiply
    861,871.29x = 1,292,803.42 × 262,830.70
  4. Step 4: Simplify right side
    861,871.29x = 339,788,427,840.99
  5. Step 5: Solve for x
    x = 339,788,427,840.99/861,871.29
  6. Step 6: Final answer
    x = 394,244.98

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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.