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Finding the Fourth Proportional to 700,701.60, 966,968.01 and 378,411.60

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Solution

The fourth proportional to 700,701.60, 966,968.01 and 378,411.60 is: 522,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,701.60 : 966,968.01 = 378,411.60 : x
  2. Step 2: Convert to fraction form
    700,701.60/966,968.01 = 378,411.60/x
  3. Step 3: Cross multiply
    700,701.60x = 966,968.01 × 378,411.60
  4. Step 4: Simplify right side
    700,701.60x = 365,911,911,812.92
  5. Step 5: Solve for x
    x = 365,911,911,812.92/700,701.60
  6. Step 6: Final answer
    x = 522,207.90

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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.