Home / 578,727.60-867,799.80-342,142.80

Finding the Fourth Proportional to 578,727.60, 867,799.80 and 342,142.80

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Solution

The fourth proportional to 578,727.60, 867,799.80 and 342,142.80 is: 513,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,727.60 : 867,799.80 = 342,142.80 : x
  2. Step 2: Convert to fraction form
    578,727.60/867,799.80 = 342,142.80/x
  3. Step 3: Cross multiply
    578,727.60x = 867,799.80 × 342,142.80
  4. Step 4: Simplify right side
    578,727.60x = 296,911,453,411.44
  5. Step 5: Solve for x
    x = 296,911,453,411.44/578,727.60
  6. Step 6: Final answer
    x = 513,041.81

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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.