Home / 918,086.07-1,266,878.09-510,162.06

Finding the Fourth Proportional to 918,086.07, 1,266,878.09 and 510,162.06

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Solution

The fourth proportional to 918,086.07, 1,266,878.09 and 510,162.06 is: 703,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,086.07 : 1,266,878.09 = 510,162.06 : x
  2. Step 2: Convert to fraction form
    918,086.07/1,266,878.09 = 510,162.06/x
  3. Step 3: Cross multiply
    918,086.07x = 1,266,878.09 × 510,162.06
  4. Step 4: Simplify right side
    918,086.07x = 646,313,136,163.27
  5. Step 5: Solve for x
    x = 646,313,136,163.27/918,086.07
  6. Step 6: Final answer
    x = 703,978.81

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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.