Home / 861,981.84-1,292,973.76-262,911.28

Finding the Fourth Proportional to 861,981.84, 1,292,973.76 and 262,911.28

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Solution

The fourth proportional to 861,981.84, 1,292,973.76 and 262,911.28 is: 394,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,981.84 : 1,292,973.76 = 262,911.28 : x
  2. Step 2: Convert to fraction form
    861,981.84/1,292,973.76 = 262,911.28/x
  3. Step 3: Cross multiply
    861,981.84x = 1,292,973.76 × 262,911.28
  4. Step 4: Simplify right side
    861,981.84x = 339,937,386,248.01
  5. Step 5: Solve for x
    x = 339,937,386,248.01/861,981.84
  6. Step 6: Final answer
    x = 394,367.23

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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.