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Finding the Fourth Proportional to 662,903.40, 992,799.90 and 451,396.20

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Solution

The fourth proportional to 662,903.40, 992,799.90 and 451,396.20 is: 676,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,903.40 : 992,799.90 = 451,396.20 : x
  2. Step 2: Convert to fraction form
    662,903.40/992,799.90 = 451,396.20/x
  3. Step 3: Cross multiply
    662,903.40x = 992,799.90 × 451,396.20
  4. Step 4: Simplify right side
    662,903.40x = 448,146,102,220.38
  5. Step 5: Solve for x
    x = 448,146,102,220.38/662,903.40
  6. Step 6: Final answer
    x = 676,035.31

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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.