Home / 859,712.10-1,289,568.15-434,559.30

Finding the Fourth Proportional to 859,712.10, 1,289,568.15 and 434,559.30

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Solution

The fourth proportional to 859,712.10, 1,289,568.15 and 434,559.30 is: 651,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,712.10 : 1,289,568.15 = 434,559.30 : x
  2. Step 2: Convert to fraction form
    859,712.10/1,289,568.15 = 434,559.30/x
  3. Step 3: Cross multiply
    859,712.10x = 1,289,568.15 × 434,559.30
  4. Step 4: Simplify right side
    859,712.10x = 560,393,832,566.30
  5. Step 5: Solve for x
    x = 560,393,832,566.30/859,712.10
  6. Step 6: Final answer
    x = 651,838.95

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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.