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Finding the Fourth Proportional to 567,510.49, 783,169.73 and 312,870.79

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Solution

The fourth proportional to 567,510.49, 783,169.73 and 312,870.79 is: 431,764.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,510.49 : 783,169.73 = 312,870.79 : x
  2. Step 2: Convert to fraction form
    567,510.49/783,169.73 = 312,870.79/x
  3. Step 3: Cross multiply
    567,510.49x = 783,169.73 × 312,870.79
  4. Step 4: Simplify right side
    567,510.49x = 245,030,932,129.19
  5. Step 5: Solve for x
    x = 245,030,932,129.19/567,510.49
  6. Step 6: Final answer
    x = 431,764.59

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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.