Home / 917,727.77-1,376,618.82-438,006.12

Finding the Fourth Proportional to 917,727.77, 1,376,618.82 and 438,006.12

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Solution

The fourth proportional to 917,727.77, 1,376,618.82 and 438,006.12 is: 657,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,727.77 : 1,376,618.82 = 438,006.12 : x
  2. Step 2: Convert to fraction form
    917,727.77/1,376,618.82 = 438,006.12/x
  3. Step 3: Cross multiply
    917,727.77x = 1,376,618.82 × 438,006.12
  4. Step 4: Simplify right side
    917,727.77x = 602,967,465,877.15
  5. Step 5: Solve for x
    x = 602,967,465,877.15/917,727.77
  6. Step 6: Final answer
    x = 657,022.15

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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.