Home / 578,740.60-867,819.30-342,155.80

Finding the Fourth Proportional to 578,740.60, 867,819.30 and 342,155.80

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Solution

The fourth proportional to 578,740.60, 867,819.30 and 342,155.80 is: 513,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,740.60 : 867,819.30 = 342,155.80 : x
  2. Step 2: Convert to fraction form
    578,740.60/867,819.30 = 342,155.80/x
  3. Step 3: Cross multiply
    578,740.60x = 867,819.30 × 342,155.80
  4. Step 4: Simplify right side
    578,740.60x = 296,929,406,846.94
  5. Step 5: Solve for x
    x = 296,929,406,846.94/578,740.60
  6. Step 6: Final answer
    x = 513,061.30

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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.