Home / 745,863.78-1,029,022.11-487,887.84

Finding the Fourth Proportional to 745,863.78, 1,029,022.11 and 487,887.84

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Solution

The fourth proportional to 745,863.78, 1,029,022.11 and 487,887.84 is: 673,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,863.78 : 1,029,022.11 = 487,887.84 : x
  2. Step 2: Convert to fraction form
    745,863.78/1,029,022.11 = 487,887.84/x
  3. Step 3: Cross multiply
    745,863.78x = 1,029,022.11 × 487,887.84
  4. Step 4: Simplify right side
    745,863.78x = 502,047,374,560.14
  5. Step 5: Solve for x
    x = 502,047,374,560.14/745,863.78
  6. Step 6: Final answer
    x = 673,108.67

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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.