Home / 555,721.56-766,931.09-340,832.34

Finding the Fourth Proportional to 555,721.56, 766,931.09 and 340,832.34

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Solution

The fourth proportional to 555,721.56, 766,931.09 and 340,832.34 is: 470,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,721.56 : 766,931.09 = 340,832.34 : x
  2. Step 2: Convert to fraction form
    555,721.56/766,931.09 = 340,832.34/x
  3. Step 3: Cross multiply
    555,721.56x = 766,931.09 × 340,832.34
  4. Step 4: Simplify right side
    555,721.56x = 261,394,916,319.29
  5. Step 5: Solve for x
    x = 261,394,916,319.29/555,721.56
  6. Step 6: Final answer
    x = 470,370.30

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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.