Home / 1,255,689.36-1,871,705.04-1,154,912.40

Finding the Fourth Proportional to 1,255,689.36, 1,871,705.04 and 1,154,912.40

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Solution

The fourth proportional to 1,255,689.36, 1,871,705.04 and 1,154,912.40 is: 1,721,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,689.36 : 1,871,705.04 = 1,154,912.40 : x
  2. Step 2: Convert to fraction form
    1,255,689.36/1,871,705.04 = 1,154,912.40/x
  3. Step 3: Cross multiply
    1,255,689.36x = 1,871,705.04 × 1,154,912.40
  4. Step 4: Simplify right side
    1,255,689.36x = 2,161,655,359,838.50
  5. Step 5: Solve for x
    x = 2,161,655,359,838.50/1,255,689.36
  6. Step 6: Final answer
    x = 1,721,488.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.