Home / 434,823.80-652,235.70-391,278.20

Finding the Fourth Proportional to 434,823.80, 652,235.70 and 391,278.20

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Solution

The fourth proportional to 434,823.80, 652,235.70 and 391,278.20 is: 586,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,823.80 : 652,235.70 = 391,278.20 : x
  2. Step 2: Convert to fraction form
    434,823.80/652,235.70 = 391,278.20/x
  3. Step 3: Cross multiply
    434,823.80x = 652,235.70 × 391,278.20
  4. Step 4: Simplify right side
    434,823.80x = 255,205,610,671.74
  5. Step 5: Solve for x
    x = 255,205,610,671.74/434,823.80
  6. Step 6: Final answer
    x = 586,917.30

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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.