Home / 919,885.40-1,377,203.70-814,909.40

Finding the Fourth Proportional to 919,885.40, 1,377,203.70 and 814,909.40

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Solution

The fourth proportional to 919,885.40, 1,377,203.70 and 814,909.40 is: 1,220,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,885.40 : 1,377,203.70 = 814,909.40 : x
  2. Step 2: Convert to fraction form
    919,885.40/1,377,203.70 = 814,909.40/x
  3. Step 3: Cross multiply
    919,885.40x = 1,377,203.70 × 814,909.40
  4. Step 4: Simplify right side
    919,885.40x = 1,122,296,240,844.78
  5. Step 5: Solve for x
    x = 1,122,296,240,844.78/919,885.40
  6. Step 6: Final answer
    x = 1,220,039.19

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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.