Home / 919,215.30-1,377,656.55-818,904.90

Finding the Fourth Proportional to 919,215.30, 1,377,656.55 and 818,904.90

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Solution

The fourth proportional to 919,215.30, 1,377,656.55 and 818,904.90 is: 1,227,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,215.30 : 1,377,656.55 = 818,904.90 : x
  2. Step 2: Convert to fraction form
    919,215.30/1,377,656.55 = 818,904.90/x
  3. Step 3: Cross multiply
    919,215.30x = 1,377,656.55 × 818,904.90
  4. Step 4: Simplify right side
    919,215.30x = 1,128,169,699,312.10
  5. Step 5: Solve for x
    x = 1,128,169,699,312.10/919,215.30
  6. Step 6: Final answer
    x = 1,227,318.23

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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.