Home / 417,913.84-626,960.77-129,719.48

Finding the Fourth Proportional to 417,913.84, 626,960.77 and 129,719.48

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Solution

The fourth proportional to 417,913.84, 626,960.77 and 129,719.48 is: 194,607.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,913.84 : 626,960.77 = 129,719.48 : x
  2. Step 2: Convert to fraction form
    417,913.84/626,960.77 = 129,719.48/x
  3. Step 3: Cross multiply
    417,913.84x = 626,960.77 × 129,719.48
  4. Step 4: Simplify right side
    417,913.84x = 81,329,026,307.90
  5. Step 5: Solve for x
    x = 81,329,026,307.90/417,913.84
  6. Step 6: Final answer
    x = 194,607.16

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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.