Home / 914,389.78-1,261,844.56-506,490.28

Finding the Fourth Proportional to 914,389.78, 1,261,844.56 and 506,490.28

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Solution

The fourth proportional to 914,389.78, 1,261,844.56 and 506,490.28 is: 698,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,389.78 : 1,261,844.56 = 506,490.28 : x
  2. Step 2: Convert to fraction form
    914,389.78/1,261,844.56 = 506,490.28/x
  3. Step 3: Cross multiply
    914,389.78x = 1,261,844.56 × 506,490.28
  4. Step 4: Simplify right side
    914,389.78x = 639,112,004,510.88
  5. Step 5: Solve for x
    x = 639,112,004,510.88/914,389.78
  6. Step 6: Final answer
    x = 698,949.20

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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.