Home / 686,720.70-1,030,081.05-450,200.70

Finding the Fourth Proportional to 686,720.70, 1,030,081.05 and 450,200.70

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Solution

The fourth proportional to 686,720.70, 1,030,081.05 and 450,200.70 is: 675,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,720.70 : 1,030,081.05 = 450,200.70 : x
  2. Step 2: Convert to fraction form
    686,720.70/1,030,081.05 = 450,200.70/x
  3. Step 3: Cross multiply
    686,720.70x = 1,030,081.05 × 450,200.70
  4. Step 4: Simplify right side
    686,720.70x = 463,743,209,766.74
  5. Step 5: Solve for x
    x = 463,743,209,766.74/686,720.70
  6. Step 6: Final answer
    x = 675,301.05

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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.