Home / 766,970.40-1,150,455.60-393,722.40

Finding the Fourth Proportional to 766,970.40, 1,150,455.60 and 393,722.40

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Solution

The fourth proportional to 766,970.40, 1,150,455.60 and 393,722.40 is: 590,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,970.40 : 1,150,455.60 = 393,722.40 : x
  2. Step 2: Convert to fraction form
    766,970.40/1,150,455.60 = 393,722.40/x
  3. Step 3: Cross multiply
    766,970.40x = 1,150,455.60 × 393,722.40
  4. Step 4: Simplify right side
    766,970.40x = 452,960,139,925.44
  5. Step 5: Solve for x
    x = 452,960,139,925.44/766,970.40
  6. Step 6: Final answer
    x = 590,583.60

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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.