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Finding the Fourth Proportional to 298,922.40, 418,802.40 and 298,922.40

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Solution

The fourth proportional to 298,922.40, 418,802.40 and 298,922.40 is: 418,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,922.40 : 418,802.40 = 298,922.40 : x
  2. Step 2: Convert to fraction form
    298,922.40/418,802.40 = 298,922.40/x
  3. Step 3: Cross multiply
    298,922.40x = 418,802.40 × 298,922.40
  4. Step 4: Simplify right side
    298,922.40x = 125,189,418,533.76
  5. Step 5: Solve for x
    x = 125,189,418,533.76/298,922.40
  6. Step 6: Final answer
    x = 418,802.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.