Home / 810,104.30-1,215,010.65-510,047.90

Finding the Fourth Proportional to 810,104.30, 1,215,010.65 and 510,047.90

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Solution

The fourth proportional to 810,104.30, 1,215,010.65 and 510,047.90 is: 764,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,104.30 : 1,215,010.65 = 510,047.90 : x
  2. Step 2: Convert to fraction form
    810,104.30/1,215,010.65 = 510,047.90/x
  3. Step 3: Cross multiply
    810,104.30x = 1,215,010.65 × 510,047.90
  4. Step 4: Simplify right side
    810,104.30x = 619,713,630,510.14
  5. Step 5: Solve for x
    x = 619,713,630,510.14/810,104.30
  6. Step 6: Final answer
    x = 764,980.05

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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.