Home / 1,205,661.13-1,663,055.55-715,283.46

Finding the Fourth Proportional to 1,205,661.13, 1,663,055.55 and 715,283.46

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Solution

The fourth proportional to 1,205,661.13, 1,663,055.55 and 715,283.46 is: 986,642.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,661.13 : 1,663,055.55 = 715,283.46 : x
  2. Step 2: Convert to fraction form
    1,205,661.13/1,663,055.55 = 715,283.46/x
  3. Step 3: Cross multiply
    1,205,661.13x = 1,663,055.55 × 715,283.46
  4. Step 4: Simplify right side
    1,205,661.13x = 1,189,556,128,557.42
  5. Step 5: Solve for x
    x = 1,189,556,128,557.42/1,205,661.13
  6. Step 6: Final answer
    x = 986,642.18

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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.