Home / 847,289.08-1,169,257.57-465,315.86

Finding the Fourth Proportional to 847,289.08, 1,169,257.57 and 465,315.86

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Solution

The fourth proportional to 847,289.08, 1,169,257.57 and 465,315.86 is: 642,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,289.08 : 1,169,257.57 = 465,315.86 : x
  2. Step 2: Convert to fraction form
    847,289.08/1,169,257.57 = 465,315.86/x
  3. Step 3: Cross multiply
    847,289.08x = 1,169,257.57 × 465,315.86
  4. Step 4: Simplify right side
    847,289.08x = 544,074,088,740.90
  5. Step 5: Solve for x
    x = 544,074,088,740.90/847,289.08
  6. Step 6: Final answer
    x = 642,135.14

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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.