Home / 514,985.27-710,538.82-308,170.42

Finding the Fourth Proportional to 514,985.27, 710,538.82 and 308,170.42

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Solution

The fourth proportional to 514,985.27, 710,538.82 and 308,170.42 is: 425,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,985.27 : 710,538.82 = 308,170.42 : x
  2. Step 2: Convert to fraction form
    514,985.27/710,538.82 = 308,170.42/x
  3. Step 3: Cross multiply
    514,985.27x = 710,538.82 × 308,170.42
  4. Step 4: Simplify right side
    514,985.27x = 218,967,047,770.78
  5. Step 5: Solve for x
    x = 218,967,047,770.78/514,985.27
  6. Step 6: Final answer
    x = 425,190.89

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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.