Home / 691,488.40-954,316.97-419,625.46

Finding the Fourth Proportional to 691,488.40, 954,316.97 and 419,625.46

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Solution

The fourth proportional to 691,488.40, 954,316.97 and 419,625.46 is: 579,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,488.40 : 954,316.97 = 419,625.46 : x
  2. Step 2: Convert to fraction form
    691,488.40/954,316.97 = 419,625.46/x
  3. Step 3: Cross multiply
    691,488.40x = 954,316.97 × 419,625.46
  4. Step 4: Simplify right side
    691,488.40x = 400,455,697,522.06
  5. Step 5: Solve for x
    x = 400,455,697,522.06/691,488.40
  6. Step 6: Final answer
    x = 579,121.35

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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.