Home / 840,515.34-1,159,863.93-478,027.38

Finding the Fourth Proportional to 840,515.34, 1,159,863.93 and 478,027.38

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Solution

The fourth proportional to 840,515.34, 1,159,863.93 and 478,027.38 is: 659,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,515.34 : 1,159,863.93 = 478,027.38 : x
  2. Step 2: Convert to fraction form
    840,515.34/1,159,863.93 = 478,027.38/x
  3. Step 3: Cross multiply
    840,515.34x = 1,159,863.93 × 478,027.38
  4. Step 4: Simplify right side
    840,515.34x = 554,446,715,614.40
  5. Step 5: Solve for x
    x = 554,446,715,614.40/840,515.34
  6. Step 6: Final answer
    x = 659,650.92

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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.