Home / 736,309.80-1,103,687.10-420,085.80

Finding the Fourth Proportional to 736,309.80, 1,103,687.10 and 420,085.80

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Solution

The fourth proportional to 736,309.80, 1,103,687.10 and 420,085.80 is: 629,685.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,309.80 : 1,103,687.10 = 420,085.80 : x
  2. Step 2: Convert to fraction form
    736,309.80/1,103,687.10 = 420,085.80/x
  3. Step 3: Cross multiply
    736,309.80x = 1,103,687.10 × 420,085.80
  4. Step 4: Simplify right side
    736,309.80x = 463,643,278,353.18
  5. Step 5: Solve for x
    x = 463,643,278,353.18/736,309.80
  6. Step 6: Final answer
    x = 629,685.06

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Double scale
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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.