Home / 827,490.10-1,242,401.55-512,562.10

Finding the Fourth Proportional to 827,490.10, 1,242,401.55 and 512,562.10

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Solution

The fourth proportional to 827,490.10, 1,242,401.55 and 512,562.10 is: 769,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,490.10 : 1,242,401.55 = 512,562.10 : x
  2. Step 2: Convert to fraction form
    827,490.10/1,242,401.55 = 512,562.10/x
  3. Step 3: Cross multiply
    827,490.10x = 1,242,401.55 × 512,562.10
  4. Step 4: Simplify right side
    827,490.10x = 636,807,947,511.26
  5. Step 5: Solve for x
    x = 636,807,947,511.26/827,490.10
  6. Step 6: Final answer
    x = 769,565.64

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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.