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Finding the Fourth Proportional to 660,998.40, 991,497.60 and 162,362.40

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Solution

The fourth proportional to 660,998.40, 991,497.60 and 162,362.40 is: 243,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,998.40 : 991,497.60 = 162,362.40 : x
  2. Step 2: Convert to fraction form
    660,998.40/991,497.60 = 162,362.40/x
  3. Step 3: Cross multiply
    660,998.40x = 991,497.60 × 162,362.40
  4. Step 4: Simplify right side
    660,998.40x = 160,981,929,930.24
  5. Step 5: Solve for x
    x = 160,981,929,930.24/660,998.40
  6. Step 6: Final answer
    x = 243,543.60

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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.