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Finding the Fourth Proportional to 766,903.60, 1,150,344.60 and 346,178.80

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Solution

The fourth proportional to 766,903.60, 1,150,344.60 and 346,178.80 is: 519,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,903.60 : 1,150,344.60 = 346,178.80 : x
  2. Step 2: Convert to fraction form
    766,903.60/1,150,344.60 = 346,178.80/x
  3. Step 3: Cross multiply
    766,903.60x = 1,150,344.60 × 346,178.80
  4. Step 4: Simplify right side
    766,903.60x = 398,224,913,214.48
  5. Step 5: Solve for x
    x = 398,224,913,214.48/766,903.60
  6. Step 6: Final answer
    x = 519,263.32

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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.