Home / 589,121.40-883,682.10-145,889.40

Finding the Fourth Proportional to 589,121.40, 883,682.10 and 145,889.40

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Solution

The fourth proportional to 589,121.40, 883,682.10 and 145,889.40 is: 218,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,121.40 : 883,682.10 = 145,889.40 : x
  2. Step 2: Convert to fraction form
    589,121.40/883,682.10 = 145,889.40/x
  3. Step 3: Cross multiply
    589,121.40x = 883,682.10 × 145,889.40
  4. Step 4: Simplify right side
    589,121.40x = 128,919,851,359.74
  5. Step 5: Solve for x
    x = 128,919,851,359.74/589,121.40
  6. Step 6: Final answer
    x = 218,834.10

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Double scale
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Similar ratio
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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.