Home / 807,130.20-1,210,257.90-333,280.20

Finding the Fourth Proportional to 807,130.20, 1,210,257.90 and 333,280.20

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Solution

The fourth proportional to 807,130.20, 1,210,257.90 and 333,280.20 is: 499,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,130.20 : 1,210,257.90 = 333,280.20 : x
  2. Step 2: Convert to fraction form
    807,130.20/1,210,257.90 = 333,280.20/x
  3. Step 3: Cross multiply
    807,130.20x = 1,210,257.90 × 333,280.20
  4. Step 4: Simplify right side
    807,130.20x = 403,354,994,963.58
  5. Step 5: Solve for x
    x = 403,354,994,963.58/807,130.20
  6. Step 6: Final answer
    x = 499,739.69

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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.