Home / 709,780.80-1,064,671.20-336,532.80

Finding the Fourth Proportional to 709,780.80, 1,064,671.20 and 336,532.80

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Solution

The fourth proportional to 709,780.80, 1,064,671.20 and 336,532.80 is: 504,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,780.80 : 1,064,671.20 = 336,532.80 : x
  2. Step 2: Convert to fraction form
    709,780.80/1,064,671.20 = 336,532.80/x
  3. Step 3: Cross multiply
    709,780.80x = 1,064,671.20 × 336,532.80
  4. Step 4: Simplify right side
    709,780.80x = 358,296,780,015.36
  5. Step 5: Solve for x
    x = 358,296,780,015.36/709,780.80
  6. Step 6: Final answer
    x = 504,799.20

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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.