Home / 578,862.60-868,002.30-342,277.80

Finding the Fourth Proportional to 578,862.60, 868,002.30 and 342,277.80

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Solution

The fourth proportional to 578,862.60, 868,002.30 and 342,277.80 is: 513,244.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,862.60 : 868,002.30 = 342,277.80 : x
  2. Step 2: Convert to fraction form
    578,862.60/868,002.30 = 342,277.80/x
  3. Step 3: Cross multiply
    578,862.60x = 868,002.30 × 342,277.80
  4. Step 4: Simplify right side
    578,862.60x = 297,097,917,638.94
  5. Step 5: Solve for x
    x = 297,097,917,638.94/578,862.60
  6. Step 6: Final answer
    x = 513,244.28

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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.