Home / 645,760.06-968,630.37-290,523.22

Finding the Fourth Proportional to 645,760.06, 968,630.37 and 290,523.22

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Solution

The fourth proportional to 645,760.06, 968,630.37 and 290,523.22 is: 435,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,760.06 : 968,630.37 = 290,523.22 : x
  2. Step 2: Convert to fraction form
    645,760.06/968,630.37 = 290,523.22/x
  3. Step 3: Cross multiply
    645,760.06x = 968,630.37 × 290,523.22
  4. Step 4: Simplify right side
    645,760.06x = 281,409,614,082.19
  5. Step 5: Solve for x
    x = 281,409,614,082.19/645,760.06
  6. Step 6: Final answer
    x = 435,780.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.