Home / 1,220,419.80-1,834,566.30-867,875.40

Finding the Fourth Proportional to 1,220,419.80, 1,834,566.30 and 867,875.40

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Solution

The fourth proportional to 1,220,419.80, 1,834,566.30 and 867,875.40 is: 1,304,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,419.80 : 1,834,566.30 = 867,875.40 : x
  2. Step 2: Convert to fraction form
    1,220,419.80/1,834,566.30 = 867,875.40/x
  3. Step 3: Cross multiply
    1,220,419.80x = 1,834,566.30 × 867,875.40
  4. Step 4: Simplify right side
    1,220,419.80x = 1,592,174,961,439.02
  5. Step 5: Solve for x
    x = 1,592,174,961,439.02/1,220,419.80
  6. Step 6: Final answer
    x = 1,304,612.53

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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.