Home / 1,127,356.80-1,555,850.40-618,158.40

Finding the Fourth Proportional to 1,127,356.80, 1,555,850.40 and 618,158.40

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Solution

The fourth proportional to 1,127,356.80, 1,555,850.40 and 618,158.40 is: 853,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,356.80 : 1,555,850.40 = 618,158.40 : x
  2. Step 2: Convert to fraction form
    1,127,356.80/1,555,850.40 = 618,158.40/x
  3. Step 3: Cross multiply
    1,127,356.80x = 1,555,850.40 × 618,158.40
  4. Step 4: Simplify right side
    1,127,356.80x = 961,761,993,903.36
  5. Step 5: Solve for x
    x = 961,761,993,903.36/1,127,356.80
  6. Step 6: Final answer
    x = 853,112.34

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Double scale
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1.5x scale

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.