Home / 970,832.16-1,339,122.96-644,138.10

Finding the Fourth Proportional to 970,832.16, 1,339,122.96 and 644,138.10

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Solution

The fourth proportional to 970,832.16, 1,339,122.96 and 644,138.10 is: 888,495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,832.16 : 1,339,122.96 = 644,138.10 : x
  2. Step 2: Convert to fraction form
    970,832.16/1,339,122.96 = 644,138.10/x
  3. Step 3: Cross multiply
    970,832.16x = 1,339,122.96 × 644,138.10
  4. Step 4: Simplify right side
    970,832.16x = 862,580,119,120.78
  5. Step 5: Solve for x
    x = 862,580,119,120.78/970,832.16
  6. Step 6: Final answer
    x = 888,495.62

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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.