Home / 434,836.80-652,255.20-391,291.20

Finding the Fourth Proportional to 434,836.80, 652,255.20 and 391,291.20

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Solution

The fourth proportional to 434,836.80, 652,255.20 and 391,291.20 is: 586,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,836.80 : 652,255.20 = 391,291.20 : x
  2. Step 2: Convert to fraction form
    434,836.80/652,255.20 = 391,291.20/x
  3. Step 3: Cross multiply
    434,836.80x = 652,255.20 × 391,291.20
  4. Step 4: Simplify right side
    434,836.80x = 255,221,719,914.24
  5. Step 5: Solve for x
    x = 255,221,719,914.24/434,836.80
  6. Step 6: Final answer
    x = 586,936.80

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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.