Home / 1,432,494.60-1,977,123.36-821,057.18

Finding the Fourth Proportional to 1,432,494.60, 1,977,123.36 and 821,057.18

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Solution

The fourth proportional to 1,432,494.60, 1,977,123.36 and 821,057.18 is: 1,133,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,494.60 : 1,977,123.36 = 821,057.18 : x
  2. Step 2: Convert to fraction form
    1,432,494.60/1,977,123.36 = 821,057.18/x
  3. Step 3: Cross multiply
    1,432,494.60x = 1,977,123.36 × 821,057.18
  4. Step 4: Simplify right side
    1,432,494.60x = 1,623,331,320,588.11
  5. Step 5: Solve for x
    x = 1,623,331,320,588.11/1,432,494.60
  6. Step 6: Final answer
    x = 1,133,219.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.