Home / 961,300.39-1,442,817.30-512,395.15

Finding the Fourth Proportional to 961,300.39, 1,442,817.30 and 512,395.15

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Solution

The fourth proportional to 961,300.39, 1,442,817.30 and 512,395.15 is: 769,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,300.39 : 1,442,817.30 = 512,395.15 : x
  2. Step 2: Convert to fraction form
    961,300.39/1,442,817.30 = 512,395.15/x
  3. Step 3: Cross multiply
    961,300.39x = 1,442,817.30 × 512,395.15
  4. Step 4: Simplify right side
    961,300.39x = 739,292,586,856.10
  5. Step 5: Solve for x
    x = 739,292,586,856.10/961,300.39
  6. Step 6: Final answer
    x = 769,054.70

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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.