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Finding the Fourth Proportional to 697,765.06, 963,019.91 and 425,990.49

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Solution

The fourth proportional to 697,765.06, 963,019.91 and 425,990.49 is: 587,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,765.06 : 963,019.91 = 425,990.49 : x
  2. Step 2: Convert to fraction form
    697,765.06/963,019.91 = 425,990.49/x
  3. Step 3: Cross multiply
    697,765.06x = 963,019.91 × 425,990.49
  4. Step 4: Simplify right side
    697,765.06x = 410,237,325,013.20
  5. Step 5: Solve for x
    x = 410,237,325,013.20/697,765.06
  6. Step 6: Final answer
    x = 587,930.45

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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.