Home / 766,504.12-1,149,894.80-316,980.96

Finding the Fourth Proportional to 766,504.12, 1,149,894.80 and 316,980.96

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Solution

The fourth proportional to 766,504.12, 1,149,894.80 and 316,980.96 is: 475,528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,504.12 : 1,149,894.80 = 316,980.96 : x
  2. Step 2: Convert to fraction form
    766,504.12/1,149,894.80 = 316,980.96/x
  3. Step 3: Cross multiply
    766,504.12x = 1,149,894.80 × 316,980.96
  4. Step 4: Simplify right side
    766,504.12x = 364,494,757,603.01
  5. Step 5: Solve for x
    x = 364,494,757,603.01/766,504.12
  6. Step 6: Final answer
    x = 475,528.77

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Double scale
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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.