Home / 715,290.12-1,073,210.31-315,648.54

Finding the Fourth Proportional to 715,290.12, 1,073,210.31 and 315,648.54

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Solution

The fourth proportional to 715,290.12, 1,073,210.31 and 315,648.54 is: 473,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,290.12 : 1,073,210.31 = 315,648.54 : x
  2. Step 2: Convert to fraction form
    715,290.12/1,073,210.31 = 315,648.54/x
  3. Step 3: Cross multiply
    715,290.12x = 1,073,210.31 × 315,648.54
  4. Step 4: Simplify right side
    715,290.12x = 338,757,267,464.45
  5. Step 5: Solve for x
    x = 338,757,267,464.45/715,290.12
  6. Step 6: Final answer
    x = 473,594.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.