Home / 879,617.09-1,214,002.13-557,357.37

Finding the Fourth Proportional to 879,617.09, 1,214,002.13 and 557,357.37

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Solution

The fourth proportional to 879,617.09, 1,214,002.13 and 557,357.37 is: 769,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,617.09 : 1,214,002.13 = 557,357.37 : x
  2. Step 2: Convert to fraction form
    879,617.09/1,214,002.13 = 557,357.37/x
  3. Step 3: Cross multiply
    879,617.09x = 1,214,002.13 × 557,357.37
  4. Step 4: Simplify right side
    879,617.09x = 676,633,034,351.20
  5. Step 5: Solve for x
    x = 676,633,034,351.20/879,617.09
  6. Step 6: Final answer
    x = 769,235.89

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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.