Home / 1,015,077.66-1,400,751.81-556,107.90

Finding the Fourth Proportional to 1,015,077.66, 1,400,751.81 and 556,107.90

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Solution

The fourth proportional to 1,015,077.66, 1,400,751.81 and 556,107.90 is: 767,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,077.66 : 1,400,751.81 = 556,107.90 : x
  2. Step 2: Convert to fraction form
    1,015,077.66/1,400,751.81 = 556,107.90/x
  3. Step 3: Cross multiply
    1,015,077.66x = 1,400,751.81 × 556,107.90
  4. Step 4: Simplify right side
    1,015,077.66x = 778,969,147,480.30
  5. Step 5: Solve for x
    x = 778,969,147,480.30/1,015,077.66
  6. Step 6: Final answer
    x = 767,398.57

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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.