Home / 918,005.45-1,266,822.36-510,096.78

Finding the Fourth Proportional to 918,005.45, 1,266,822.36 and 510,096.78

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Solution

The fourth proportional to 918,005.45, 1,266,822.36 and 510,096.78 is: 703,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,005.45 : 1,266,822.36 = 510,096.78 : x
  2. Step 2: Convert to fraction form
    918,005.45/1,266,822.36 = 510,096.78/x
  3. Step 3: Cross multiply
    918,005.45x = 1,266,822.36 × 510,096.78
  4. Step 4: Simplify right side
    918,005.45x = 646,202,006,668.00
  5. Step 5: Solve for x
    x = 646,202,006,668.00/918,005.45
  6. Step 6: Final answer
    x = 703,919.58

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1.5x scale

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.