Home / 763,619.89-1,052,931.89-487,614.83

Finding the Fourth Proportional to 763,619.89, 1,052,931.89 and 487,614.83

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Solution

The fourth proportional to 763,619.89, 1,052,931.89 and 487,614.83 is: 672,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,619.89 : 1,052,931.89 = 487,614.83 : x
  2. Step 2: Convert to fraction form
    763,619.89/1,052,931.89 = 487,614.83/x
  3. Step 3: Cross multiply
    763,619.89x = 1,052,931.89 × 487,614.83
  4. Step 4: Simplify right side
    763,619.89x = 513,425,204,543.93
  5. Step 5: Solve for x
    x = 513,425,204,543.93/763,619.89
  6. Step 6: Final answer
    x = 672,357.03

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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.