Home / 1,352,869.28-1,866,060.44-870,045.20

Finding the Fourth Proportional to 1,352,869.28, 1,866,060.44 and 870,045.20

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Solution

The fourth proportional to 1,352,869.28, 1,866,060.44 and 870,045.20 is: 1,200,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,869.28 : 1,866,060.44 = 870,045.20 : x
  2. Step 2: Convert to fraction form
    1,352,869.28/1,866,060.44 = 870,045.20/x
  3. Step 3: Cross multiply
    1,352,869.28x = 1,866,060.44 × 870,045.20
  4. Step 4: Simplify right side
    1,352,869.28x = 1,623,556,928,731.89
  5. Step 5: Solve for x
    x = 1,623,556,928,731.89/1,352,869.28
  6. Step 6: Final answer
    x = 1,200,084.11

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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.