Home / 686,249.34-1,029,619.02-416,926.90

Finding the Fourth Proportional to 686,249.34, 1,029,619.02 and 416,926.90

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Solution

The fourth proportional to 686,249.34, 1,029,619.02 and 416,926.90 is: 625,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,249.34 : 1,029,619.02 = 416,926.90 : x
  2. Step 2: Convert to fraction form
    686,249.34/1,029,619.02 = 416,926.90/x
  3. Step 3: Cross multiply
    686,249.34x = 1,029,619.02 × 416,926.90
  4. Step 4: Simplify right side
    686,249.34x = 429,275,866,189.64
  5. Step 5: Solve for x
    x = 429,275,866,189.64/686,249.34
  6. Step 6: Final answer
    x = 625,539.20

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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.