Home / 856,381.36-1,284,601.20-406,870.24

Finding the Fourth Proportional to 856,381.36, 1,284,601.20 and 406,870.24

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Solution

The fourth proportional to 856,381.36, 1,284,601.20 and 406,870.24 is: 610,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,381.36 : 1,284,601.20 = 406,870.24 : x
  2. Step 2: Convert to fraction form
    856,381.36/1,284,601.20 = 406,870.24/x
  3. Step 3: Cross multiply
    856,381.36x = 1,284,601.20 × 406,870.24
  4. Step 4: Simplify right side
    856,381.36x = 522,665,998,548.29
  5. Step 5: Solve for x
    x = 522,665,998,548.29/856,381.36
  6. Step 6: Final answer
    x = 610,319.21

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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.