Home / 691,810.20-1,037,909.70-336,835.80

Finding the Fourth Proportional to 691,810.20, 1,037,909.70 and 336,835.80

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Solution

The fourth proportional to 691,810.20, 1,037,909.70 and 336,835.80 is: 505,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,810.20 : 1,037,909.70 = 336,835.80 : x
  2. Step 2: Convert to fraction form
    691,810.20/1,037,909.70 = 336,835.80/x
  3. Step 3: Cross multiply
    691,810.20x = 1,037,909.70 × 336,835.80
  4. Step 4: Simplify right side
    691,810.20x = 349,605,144,127.26
  5. Step 5: Solve for x
    x = 349,605,144,127.26/691,810.20
  6. Step 6: Final answer
    x = 505,348.35

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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.