Home / 810,102.80-1,215,008.40-510,046.40

Finding the Fourth Proportional to 810,102.80, 1,215,008.40 and 510,046.40

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Solution

The fourth proportional to 810,102.80, 1,215,008.40 and 510,046.40 is: 764,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,102.80 : 1,215,008.40 = 510,046.40 : x
  2. Step 2: Convert to fraction form
    810,102.80/1,215,008.40 = 510,046.40/x
  3. Step 3: Cross multiply
    810,102.80x = 1,215,008.40 × 510,046.40
  4. Step 4: Simplify right side
    810,102.80x = 619,710,660,389.76
  5. Step 5: Solve for x
    x = 619,710,660,389.76/810,102.80
  6. Step 6: Final answer
    x = 764,977.80

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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.