Home / 1,138,678.64-1,708,048-498,653.12

Finding the Fourth Proportional to 1,138,678.64, 1,708,048 and 498,653.12

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Solution

The fourth proportional to 1,138,678.64, 1,708,048 and 498,653.12 is: 747,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,678.64 : 1,708,048 = 498,653.12 : x
  2. Step 2: Convert to fraction form
    1,138,678.64/1,708,048 = 498,653.12/x
  3. Step 3: Cross multiply
    1,138,678.64x = 1,708,048 × 498,653.12
  4. Step 4: Simplify right side
    1,138,678.64x = 851,723,464,309.76
  5. Step 5: Solve for x
    x = 851,723,464,309.76/1,138,678.64
  6. Step 6: Final answer
    x = 747,992.84

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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.