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Finding the Fourth Proportional to 700,700.48, 966,966.62 and 378,410.54

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Solution

The fourth proportional to 700,700.48, 966,966.62 and 378,410.54 is: 522,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,700.48 : 966,966.62 = 378,410.54 : x
  2. Step 2: Convert to fraction form
    700,700.48/966,966.62 = 378,410.54/x
  3. Step 3: Cross multiply
    700,700.48x = 966,966.62 × 378,410.54
  4. Step 4: Simplify right side
    700,700.48x = 365,910,364,199.62
  5. Step 5: Solve for x
    x = 365,910,364,199.62/700,700.48
  6. Step 6: Final answer
    x = 522,206.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.