Home / 766,646.40-1,150,191.48-317,284.32

Finding the Fourth Proportional to 766,646.40, 1,150,191.48 and 317,284.32

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Solution

The fourth proportional to 766,646.40, 1,150,191.48 and 317,284.32 is: 476,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,646.40 : 1,150,191.48 = 317,284.32 : x
  2. Step 2: Convert to fraction form
    766,646.40/1,150,191.48 = 317,284.32/x
  3. Step 3: Cross multiply
    766,646.40x = 1,150,191.48 × 317,284.32
  4. Step 4: Simplify right side
    766,646.40x = 364,937,721,601.59
  5. Step 5: Solve for x
    x = 364,937,721,601.59/766,646.40
  6. Step 6: Final answer
    x = 476,018.31

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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.