Home / 1,127,288.80-1,555,718.16-618,012.64

Finding the Fourth Proportional to 1,127,288.80, 1,555,718.16 and 618,012.64

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Solution

The fourth proportional to 1,127,288.80, 1,555,718.16 and 618,012.64 is: 852,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,288.80 : 1,555,718.16 = 618,012.64 : x
  2. Step 2: Convert to fraction form
    1,127,288.80/1,555,718.16 = 618,012.64/x
  3. Step 3: Cross multiply
    1,127,288.80x = 1,555,718.16 × 618,012.64
  4. Step 4: Simplify right side
    1,127,288.80x = 961,453,487,157.54
  5. Step 5: Solve for x
    x = 961,453,487,157.54/1,127,288.80
  6. Step 6: Final answer
    x = 852,890.13

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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.