Home / 1,221,325.80-1,831,988.70-906,397.80

Finding the Fourth Proportional to 1,221,325.80, 1,831,988.70 and 906,397.80

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Solution

The fourth proportional to 1,221,325.80, 1,831,988.70 and 906,397.80 is: 1,359,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,325.80 : 1,831,988.70 = 906,397.80 : x
  2. Step 2: Convert to fraction form
    1,221,325.80/1,831,988.70 = 906,397.80/x
  3. Step 3: Cross multiply
    1,221,325.80x = 1,831,988.70 × 906,397.80
  4. Step 4: Simplify right side
    1,221,325.80x = 1,660,510,527,304.86
  5. Step 5: Solve for x
    x = 1,660,510,527,304.86/1,221,325.80
  6. Step 6: Final answer
    x = 1,359,596.70

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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.