Home / 1,418,579.10-1,957,638.51-909,281.07

Finding the Fourth Proportional to 1,418,579.10, 1,957,638.51 and 909,281.07

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Solution

The fourth proportional to 1,418,579.10, 1,957,638.51 and 909,281.07 is: 1,254,807.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,579.10 : 1,957,638.51 = 909,281.07 : x
  2. Step 2: Convert to fraction form
    1,418,579.10/1,957,638.51 = 909,281.07/x
  3. Step 3: Cross multiply
    1,418,579.10x = 1,957,638.51 × 909,281.07
  4. Step 4: Simplify right side
    1,418,579.10x = 1,780,043,639,046.01
  5. Step 5: Solve for x
    x = 1,780,043,639,046.01/1,418,579.10
  6. Step 6: Final answer
    x = 1,254,807.46

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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.