Home / 827,528.10-1,242,458.55-512,600.10

Finding the Fourth Proportional to 827,528.10, 1,242,458.55 and 512,600.10

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Solution

The fourth proportional to 827,528.10, 1,242,458.55 and 512,600.10 is: 769,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,528.10 : 1,242,458.55 = 512,600.10 : x
  2. Step 2: Convert to fraction form
    827,528.10/1,242,458.55 = 512,600.10/x
  3. Step 3: Cross multiply
    827,528.10x = 1,242,458.55 × 512,600.10
  4. Step 4: Simplify right side
    827,528.10x = 636,884,376,975.86
  5. Step 5: Solve for x
    x = 636,884,376,975.86/827,528.10
  6. Step 6: Final answer
    x = 769,622.66

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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.