Home / 1,331,811.27-1,838,399.35-872,955.40

Finding the Fourth Proportional to 1,331,811.27, 1,838,399.35 and 872,955.40

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Solution

The fourth proportional to 1,331,811.27, 1,838,399.35 and 872,955.40 is: 1,205,006.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,811.27 : 1,838,399.35 = 872,955.40 : x
  2. Step 2: Convert to fraction form
    1,331,811.27/1,838,399.35 = 872,955.40/x
  3. Step 3: Cross multiply
    1,331,811.27x = 1,838,399.35 × 872,955.40
  4. Step 4: Simplify right side
    1,331,811.27x = 1,604,840,639,938.99
  5. Step 5: Solve for x
    x = 1,604,840,639,938.99/1,331,811.27
  6. Step 6: Final answer
    x = 1,205,006.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.