Home / 1,352,945.36-1,866,219.72-870,139.28

Finding the Fourth Proportional to 1,352,945.36, 1,866,219.72 and 870,139.28

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Solution

The fourth proportional to 1,352,945.36, 1,866,219.72 and 870,139.28 is: 1,200,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,945.36 : 1,866,219.72 = 870,139.28 : x
  2. Step 2: Convert to fraction form
    1,352,945.36/1,866,219.72 = 870,139.28/x
  3. Step 3: Cross multiply
    1,352,945.36x = 1,866,219.72 × 870,139.28
  4. Step 4: Simplify right side
    1,352,945.36x = 1,623,871,083,482.60
  5. Step 5: Solve for x
    x = 1,623,871,083,482.60/1,352,945.36
  6. Step 6: Final answer
    x = 1,200,248.83

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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.