Home / 968,079.36-1,335,847.20-538,290.12

Finding the Fourth Proportional to 968,079.36, 1,335,847.20 and 538,290.12

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Solution

The fourth proportional to 968,079.36, 1,335,847.20 and 538,290.12 is: 742,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,079.36 : 1,335,847.20 = 538,290.12 : x
  2. Step 2: Convert to fraction form
    968,079.36/1,335,847.20 = 538,290.12/x
  3. Step 3: Cross multiply
    968,079.36x = 1,335,847.20 × 538,290.12
  4. Step 4: Simplify right side
    968,079.36x = 719,073,349,589.66
  5. Step 5: Solve for x
    x = 719,073,349,589.66/968,079.36
  6. Step 6: Final answer
    x = 742,783.47

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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.