Home / 672,289.10-1,008,433.65-520,073.90

Finding the Fourth Proportional to 672,289.10, 1,008,433.65 and 520,073.90

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Solution

The fourth proportional to 672,289.10, 1,008,433.65 and 520,073.90 is: 780,110.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,289.10 : 1,008,433.65 = 520,073.90 : x
  2. Step 2: Convert to fraction form
    672,289.10/1,008,433.65 = 520,073.90/x
  3. Step 3: Cross multiply
    672,289.10x = 1,008,433.65 × 520,073.90
  4. Step 4: Simplify right side
    672,289.10x = 524,460,021,246.74
  5. Step 5: Solve for x
    x = 524,460,021,246.74/672,289.10
  6. Step 6: Final answer
    x = 780,110.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.