Home / 827,767.50-1,240,612.47-353,895.90

Finding the Fourth Proportional to 827,767.50, 1,240,612.47 and 353,895.90

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Solution

The fourth proportional to 827,767.50, 1,240,612.47 and 353,895.90 is: 530,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,767.50 : 1,240,612.47 = 353,895.90 : x
  2. Step 2: Convert to fraction form
    827,767.50/1,240,612.47 = 353,895.90/x
  3. Step 3: Cross multiply
    827,767.50x = 1,240,612.47 × 353,895.90
  4. Step 4: Simplify right side
    827,767.50x = 439,047,666,621.87
  5. Step 5: Solve for x
    x = 439,047,666,621.87/827,767.50
  6. Step 6: Final answer
    x = 530,399.74

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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.