Home / 917,728.02-1,376,619.19-438,006.38

Finding the Fourth Proportional to 917,728.02, 1,376,619.19 and 438,006.38

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Solution

The fourth proportional to 917,728.02, 1,376,619.19 and 438,006.38 is: 657,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,728.02 : 1,376,619.19 = 438,006.38 : x
  2. Step 2: Convert to fraction form
    917,728.02/1,376,619.19 = 438,006.38/x
  3. Step 3: Cross multiply
    917,728.02x = 1,376,619.19 × 438,006.38
  4. Step 4: Simplify right side
    917,728.02x = 602,967,980,072.32
  5. Step 5: Solve for x
    x = 602,967,980,072.32/917,728.02
  6. Step 6: Final answer
    x = 657,022.52

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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.