Home / 627,276.90-865,637.46-340,799.34

Finding the Fourth Proportional to 627,276.90, 865,637.46 and 340,799.34

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Solution

The fourth proportional to 627,276.90, 865,637.46 and 340,799.34 is: 470,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,276.90 : 865,637.46 = 340,799.34 : x
  2. Step 2: Convert to fraction form
    627,276.90/865,637.46 = 340,799.34/x
  3. Step 3: Cross multiply
    627,276.90x = 865,637.46 × 340,799.34
  4. Step 4: Simplify right side
    627,276.90x = 295,008,675,047.28
  5. Step 5: Solve for x
    x = 295,008,675,047.28/627,276.90
  6. Step 6: Final answer
    x = 470,300.56

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1.5x scale

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.