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Finding the Fourth Proportional to 598,775.40, 898,400.70 and 243,815.40

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Solution

The fourth proportional to 598,775.40, 898,400.70 and 243,815.40 is: 365,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,775.40 : 898,400.70 = 243,815.40 : x
  2. Step 2: Convert to fraction form
    598,775.40/898,400.70 = 243,815.40/x
  3. Step 3: Cross multiply
    598,775.40x = 898,400.70 × 243,815.40
  4. Step 4: Simplify right side
    598,775.40x = 219,043,926,030.78
  5. Step 5: Solve for x
    x = 219,043,926,030.78/598,775.40
  6. Step 6: Final answer
    x = 365,819.85

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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.