Home / 783,266.60-1,175,288.70-309,967.40

Finding the Fourth Proportional to 783,266.60, 1,175,288.70 and 309,967.40

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Solution

The fourth proportional to 783,266.60, 1,175,288.70 and 309,967.40 is: 465,104.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,266.60 : 1,175,288.70 = 309,967.40 : x
  2. Step 2: Convert to fraction form
    783,266.60/1,175,288.70 = 309,967.40/x
  3. Step 3: Cross multiply
    783,266.60x = 1,175,288.70 × 309,967.40
  4. Step 4: Simplify right side
    783,266.60x = 364,301,182,588.38
  5. Step 5: Solve for x
    x = 364,301,182,588.38/783,266.60
  6. Step 6: Final answer
    x = 465,104.96

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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.