Home / 840,379.68-1,159,731.36-458,408.16

Finding the Fourth Proportional to 840,379.68, 1,159,731.36 and 458,408.16

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Solution

The fourth proportional to 840,379.68, 1,159,731.36 and 458,408.16 is: 632,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,379.68 : 1,159,731.36 = 458,408.16 : x
  2. Step 2: Convert to fraction form
    840,379.68/1,159,731.36 = 458,408.16/x
  3. Step 3: Cross multiply
    840,379.68x = 1,159,731.36 × 458,408.16
  4. Step 4: Simplify right side
    840,379.68x = 531,630,318,831.90
  5. Step 5: Solve for x
    x = 531,630,318,831.90/840,379.68
  6. Step 6: Final answer
    x = 632,607.30

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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.