Home / 1,053,239.58-1,453,644.48-645,568.20

Finding the Fourth Proportional to 1,053,239.58, 1,453,644.48 and 645,568.20

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Solution

The fourth proportional to 1,053,239.58, 1,453,644.48 and 645,568.20 is: 890,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,239.58 : 1,453,644.48 = 645,568.20 : x
  2. Step 2: Convert to fraction form
    1,053,239.58/1,453,644.48 = 645,568.20/x
  3. Step 3: Cross multiply
    1,053,239.58x = 1,453,644.48 × 645,568.20
  4. Step 4: Simplify right side
    1,053,239.58x = 938,426,650,393.54
  5. Step 5: Solve for x
    x = 938,426,650,393.54/1,053,239.58
  6. Step 6: Final answer
    x = 890,990.68

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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.