Home / 810,215.04-1,118,081.16-447,654.72

Finding the Fourth Proportional to 810,215.04, 1,118,081.16 and 447,654.72

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Solution

The fourth proportional to 810,215.04, 1,118,081.16 and 447,654.72 is: 617,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,215.04 : 1,118,081.16 = 447,654.72 : x
  2. Step 2: Convert to fraction form
    810,215.04/1,118,081.16 = 447,654.72/x
  3. Step 3: Cross multiply
    810,215.04x = 1,118,081.16 × 447,654.72
  4. Step 4: Simplify right side
    810,215.04x = 500,514,308,617.08
  5. Step 5: Solve for x
    x = 500,514,308,617.08/810,215.04
  6. Step 6: Final answer
    x = 617,754.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.