Home / 551,869.20-827,803.80-458,557.20

Finding the Fourth Proportional to 551,869.20, 827,803.80 and 458,557.20

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Solution

The fourth proportional to 551,869.20, 827,803.80 and 458,557.20 is: 687,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,869.20 : 827,803.80 = 458,557.20 : x
  2. Step 2: Convert to fraction form
    551,869.20/827,803.80 = 458,557.20/x
  3. Step 3: Cross multiply
    551,869.20x = 827,803.80 × 458,557.20
  4. Step 4: Simplify right side
    551,869.20x = 379,595,392,677.36
  5. Step 5: Solve for x
    x = 379,595,392,677.36/551,869.20
  6. Step 6: Final answer
    x = 687,835.80

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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.