Home / 917,908.61-1,266,709.79-510,076.85

Finding the Fourth Proportional to 917,908.61, 1,266,709.79 and 510,076.85

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Solution

The fourth proportional to 917,908.61, 1,266,709.79 and 510,076.85 is: 703,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,908.61 : 1,266,709.79 = 510,076.85 : x
  2. Step 2: Convert to fraction form
    917,908.61/1,266,709.79 = 510,076.85/x
  3. Step 3: Cross multiply
    917,908.61x = 1,266,709.79 × 510,076.85
  4. Step 4: Simplify right side
    917,908.61x = 646,119,334,489.01
  5. Step 5: Solve for x
    x = 646,119,334,489.01/917,908.61
  6. Step 6: Final answer
    x = 703,903.78

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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.