Home / 487,814.44-731,939.82-310,275.40

Finding the Fourth Proportional to 487,814.44, 731,939.82 and 310,275.40

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Solution

The fourth proportional to 487,814.44, 731,939.82 and 310,275.40 is: 465,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,814.44 : 731,939.82 = 310,275.40 : x
  2. Step 2: Convert to fraction form
    487,814.44/731,939.82 = 310,275.40/x
  3. Step 3: Cross multiply
    487,814.44x = 731,939.82 × 310,275.40
  4. Step 4: Simplify right side
    487,814.44x = 227,102,920,426.43
  5. Step 5: Solve for x
    x = 227,102,920,426.43/487,814.44
  6. Step 6: Final answer
    x = 465,551.86

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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.