Home / 691,979.80-1,037,969.70-373,115.20

Finding the Fourth Proportional to 691,979.80, 1,037,969.70 and 373,115.20

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Solution

The fourth proportional to 691,979.80, 1,037,969.70 and 373,115.20 is: 559,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,979.80 : 1,037,969.70 = 373,115.20 : x
  2. Step 2: Convert to fraction form
    691,979.80/1,037,969.70 = 373,115.20/x
  3. Step 3: Cross multiply
    691,979.80x = 1,037,969.70 × 373,115.20
  4. Step 4: Simplify right side
    691,979.80x = 387,282,272,209.44
  5. Step 5: Solve for x
    x = 387,282,272,209.44/691,979.80
  6. Step 6: Final answer
    x = 559,672.80

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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.