Home / 847,291.62-1,169,261.05-465,318.40

Finding the Fourth Proportional to 847,291.62, 1,169,261.05 and 465,318.40

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Solution

The fourth proportional to 847,291.62, 1,169,261.05 and 465,318.40 is: 642,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,291.62 : 1,169,261.05 = 465,318.40 : x
  2. Step 2: Convert to fraction form
    847,291.62/1,169,261.05 = 465,318.40/x
  3. Step 3: Cross multiply
    847,291.62x = 1,169,261.05 × 465,318.40
  4. Step 4: Simplify right side
    847,291.62x = 544,078,675,349.45
  5. Step 5: Solve for x
    x = 544,078,675,349.45/847,291.62
  6. Step 6: Final answer
    x = 642,138.63

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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.