Home / 687,745.28-1,030,275.90-450,368.30

Finding the Fourth Proportional to 687,745.28, 1,030,275.90 and 450,368.30

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Solution

The fourth proportional to 687,745.28, 1,030,275.90 and 450,368.30 is: 674,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,745.28 : 1,030,275.90 = 450,368.30 : x
  2. Step 2: Convert to fraction form
    687,745.28/1,030,275.90 = 450,368.30/x
  3. Step 3: Cross multiply
    687,745.28x = 1,030,275.90 × 450,368.30
  4. Step 4: Simplify right side
    687,745.28x = 464,003,605,613.97
  5. Step 5: Solve for x
    x = 464,003,605,613.97/687,745.28
  6. Step 6: Final answer
    x = 674,673.63

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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.