Home / 1,003,374.32-1,385,305.08-621,806

Finding the Fourth Proportional to 1,003,374.32, 1,385,305.08 and 621,806

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Solution

The fourth proportional to 1,003,374.32, 1,385,305.08 and 621,806 is: 858,494.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,374.32 : 1,385,305.08 = 621,806 : x
  2. Step 2: Convert to fraction form
    1,003,374.32/1,385,305.08 = 621,806/x
  3. Step 3: Cross multiply
    1,003,374.32x = 1,385,305.08 × 621,806
  4. Step 4: Simplify right side
    1,003,374.32x = 861,391,010,574.48
  5. Step 5: Solve for x
    x = 861,391,010,574.48/1,003,374.32
  6. Step 6: Final answer
    x = 858,494.18

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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.