Home / 1,205,287.20-1,807,873.20-406,490.40

Finding the Fourth Proportional to 1,205,287.20, 1,807,873.20 and 406,490.40

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Solution

The fourth proportional to 1,205,287.20, 1,807,873.20 and 406,490.40 is: 609,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,287.20 : 1,807,873.20 = 406,490.40 : x
  2. Step 2: Convert to fraction form
    1,205,287.20/1,807,873.20 = 406,490.40/x
  3. Step 3: Cross multiply
    1,205,287.20x = 1,807,873.20 × 406,490.40
  4. Step 4: Simplify right side
    1,205,287.20x = 734,883,100,217.28
  5. Step 5: Solve for x
    x = 734,883,100,217.28/1,205,287.20
  6. Step 6: Final answer
    x = 609,716.17

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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.