Home / 579,818.20-869,727.30-402,671.20

Finding the Fourth Proportional to 579,818.20, 869,727.30 and 402,671.20

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Solution

The fourth proportional to 579,818.20, 869,727.30 and 402,671.20 is: 604,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,818.20 : 869,727.30 = 402,671.20 : x
  2. Step 2: Convert to fraction form
    579,818.20/869,727.30 = 402,671.20/x
  3. Step 3: Cross multiply
    579,818.20x = 869,727.30 × 402,671.20
  4. Step 4: Simplify right side
    579,818.20x = 350,214,135,563.76
  5. Step 5: Solve for x
    x = 350,214,135,563.76/579,818.20
  6. Step 6: Final answer
    x = 604,006.80

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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.