Home / 627,132.79-865,459.34-340,669.27

Finding the Fourth Proportional to 627,132.79, 865,459.34 and 340,669.27

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Solution

The fourth proportional to 627,132.79, 865,459.34 and 340,669.27 is: 470,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,132.79 : 865,459.34 = 340,669.27 : x
  2. Step 2: Convert to fraction form
    627,132.79/865,459.34 = 340,669.27/x
  3. Step 3: Cross multiply
    627,132.79x = 865,459.34 × 340,669.27
  4. Step 4: Simplify right side
    627,132.79x = 294,835,401,572.48
  5. Step 5: Solve for x
    x = 294,835,401,572.48/627,132.79
  6. Step 6: Final answer
    x = 470,132.33

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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.