Home / 758,423.36-1,136,932.16-285,422.40

Finding the Fourth Proportional to 758,423.36, 1,136,932.16 and 285,422.40

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Solution

The fourth proportional to 758,423.36, 1,136,932.16 and 285,422.40 is: 427,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,423.36 : 1,136,932.16 = 285,422.40 : x
  2. Step 2: Convert to fraction form
    758,423.36/1,136,932.16 = 285,422.40/x
  3. Step 3: Cross multiply
    758,423.36x = 1,136,932.16 × 285,422.40
  4. Step 4: Simplify right side
    758,423.36x = 324,505,905,744.38
  5. Step 5: Solve for x
    x = 324,505,905,744.38/758,423.36
  6. Step 6: Final answer
    x = 427,869.08

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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.