Home / 821,530.60-1,232,123.10-348,231.40

Finding the Fourth Proportional to 821,530.60, 1,232,123.10 and 348,231.40

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Solution

The fourth proportional to 821,530.60, 1,232,123.10 and 348,231.40 is: 522,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,530.60 : 1,232,123.10 = 348,231.40 : x
  2. Step 2: Convert to fraction form
    821,530.60/1,232,123.10 = 348,231.40/x
  3. Step 3: Cross multiply
    821,530.60x = 1,232,123.10 × 348,231.40
  4. Step 4: Simplify right side
    821,530.60x = 429,063,952,085.34
  5. Step 5: Solve for x
    x = 429,063,952,085.34/821,530.60
  6. Step 6: Final answer
    x = 522,273.85

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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.