Home / 728,066.40-1,091,710.80-306,866.40

Finding the Fourth Proportional to 728,066.40, 1,091,710.80 and 306,866.40

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Solution

The fourth proportional to 728,066.40, 1,091,710.80 and 306,866.40 is: 460,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,066.40 : 1,091,710.80 = 306,866.40 : x
  2. Step 2: Convert to fraction form
    728,066.40/1,091,710.80 = 306,866.40/x
  3. Step 3: Cross multiply
    728,066.40x = 1,091,710.80 × 306,866.40
  4. Step 4: Simplify right side
    728,066.40x = 335,009,363,037.12
  5. Step 5: Solve for x
    x = 335,009,363,037.12/728,066.40
  6. Step 6: Final answer
    x = 460,135.73

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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.