Home / 1,016,280.95-1,398,947.76-878,397.08

Finding the Fourth Proportional to 1,016,280.95, 1,398,947.76 and 878,397.08

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Solution

The fourth proportional to 1,016,280.95, 1,398,947.76 and 878,397.08 is: 1,209,145.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,280.95 : 1,398,947.76 = 878,397.08 : x
  2. Step 2: Convert to fraction form
    1,016,280.95/1,398,947.76 = 878,397.08/x
  3. Step 3: Cross multiply
    1,016,280.95x = 1,398,947.76 × 878,397.08
  4. Step 4: Simplify right side
    1,016,280.95x = 1,228,831,620,461.80
  5. Step 5: Solve for x
    x = 1,228,831,620,461.80/1,016,280.95
  6. Step 6: Final answer
    x = 1,209,145.59

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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.