Home / 989,874.78-1,366,008.39-602,549.34

Finding the Fourth Proportional to 989,874.78, 1,366,008.39 and 602,549.34

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Solution

The fourth proportional to 989,874.78, 1,366,008.39 and 602,549.34 is: 831,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,874.78 : 1,366,008.39 = 602,549.34 : x
  2. Step 2: Convert to fraction form
    989,874.78/1,366,008.39 = 602,549.34/x
  3. Step 3: Cross multiply
    989,874.78x = 1,366,008.39 × 602,549.34
  4. Step 4: Simplify right side
    989,874.78x = 823,087,453,828.96
  5. Step 5: Solve for x
    x = 823,087,453,828.96/989,874.78
  6. Step 6: Final answer
    x = 831,506.64

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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.