Home / 720,987.40-1,081,481.10-627,675.40

Finding the Fourth Proportional to 720,987.40, 1,081,481.10 and 627,675.40

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Solution

The fourth proportional to 720,987.40, 1,081,481.10 and 627,675.40 is: 941,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,987.40 : 1,081,481.10 = 627,675.40 : x
  2. Step 2: Convert to fraction form
    720,987.40/1,081,481.10 = 627,675.40/x
  3. Step 3: Cross multiply
    720,987.40x = 1,081,481.10 × 627,675.40
  4. Step 4: Simplify right side
    720,987.40x = 678,819,082,034.94
  5. Step 5: Solve for x
    x = 678,819,082,034.94/720,987.40
  6. Step 6: Final answer
    x = 941,513.10

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1.5x scale

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.