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Finding the Fourth Proportional to 626,793.60, 940,804.80 and 311,606.40

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Solution

The fourth proportional to 626,793.60, 940,804.80 and 311,606.40 is: 467,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,793.60 : 940,804.80 = 311,606.40 : x
  2. Step 2: Convert to fraction form
    626,793.60/940,804.80 = 311,606.40/x
  3. Step 3: Cross multiply
    626,793.60x = 940,804.80 × 311,606.40
  4. Step 4: Simplify right side
    626,793.60x = 293,160,796,830.72
  5. Step 5: Solve for x
    x = 293,160,796,830.72/626,793.60
  6. Step 6: Final answer
    x = 467,715.05

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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.