Home / 1,047,490.31-1,445,495.95-640,273.97

Finding the Fourth Proportional to 1,047,490.31, 1,445,495.95 and 640,273.97

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Solution

The fourth proportional to 1,047,490.31, 1,445,495.95 and 640,273.97 is: 883,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,490.31 : 1,445,495.95 = 640,273.97 : x
  2. Step 2: Convert to fraction form
    1,047,490.31/1,445,495.95 = 640,273.97/x
  3. Step 3: Cross multiply
    1,047,490.31x = 1,445,495.95 × 640,273.97
  4. Step 4: Simplify right side
    1,047,490.31x = 925,513,430,525.42
  5. Step 5: Solve for x
    x = 925,513,430,525.42/1,047,490.31
  6. Step 6: Final answer
    x = 883,553.21

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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.