Home / 1,218,400.48-1,680,864.65-734,696.90

Finding the Fourth Proportional to 1,218,400.48, 1,680,864.65 and 734,696.90

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Solution

The fourth proportional to 1,218,400.48, 1,680,864.65 and 734,696.90 is: 1,013,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,400.48 : 1,680,864.65 = 734,696.90 : x
  2. Step 2: Convert to fraction form
    1,218,400.48/1,680,864.65 = 734,696.90/x
  3. Step 3: Cross multiply
    1,218,400.48x = 1,680,864.65 × 734,696.90
  4. Step 4: Simplify right side
    1,218,400.48x = 1,234,926,044,655.13
  5. Step 5: Solve for x
    x = 1,234,926,044,655.13/1,218,400.48
  6. Step 6: Final answer
    x = 1,013,563.33

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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.