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Finding the Fourth Proportional to 587,175.56, 810,306.42 and 318,903.56

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Solution

The fourth proportional to 587,175.56, 810,306.42 and 318,903.56 is: 440,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,175.56 : 810,306.42 = 318,903.56 : x
  2. Step 2: Convert to fraction form
    587,175.56/810,306.42 = 318,903.56/x
  3. Step 3: Cross multiply
    587,175.56x = 810,306.42 × 318,903.56
  4. Step 4: Simplify right side
    587,175.56x = 258,409,602,028.86
  5. Step 5: Solve for x
    x = 258,409,602,028.86/587,175.56
  6. Step 6: Final answer
    x = 440,089.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.