Home / 450,721.31-621,971.78-246,733.16

Finding the Fourth Proportional to 450,721.31, 621,971.78 and 246,733.16

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Solution

The fourth proportional to 450,721.31, 621,971.78 and 246,733.16 is: 340,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,721.31 : 621,971.78 = 246,733.16 : x
  2. Step 2: Convert to fraction form
    450,721.31/621,971.78 = 246,733.16/x
  3. Step 3: Cross multiply
    450,721.31x = 621,971.78 × 246,733.16
  4. Step 4: Simplify right side
    450,721.31x = 153,461,063,961.56
  5. Step 5: Solve for x
    x = 153,461,063,961.56/450,721.31
  6. Step 6: Final answer
    x = 340,478.83

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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.