Home / 697,454.28-962,486.41-391,531.25

Finding the Fourth Proportional to 697,454.28, 962,486.41 and 391,531.25

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Solution

The fourth proportional to 697,454.28, 962,486.41 and 391,531.25 is: 540,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,454.28 : 962,486.41 = 391,531.25 : x
  2. Step 2: Convert to fraction form
    697,454.28/962,486.41 = 391,531.25/x
  3. Step 3: Cross multiply
    697,454.28x = 962,486.41 × 391,531.25
  4. Step 4: Simplify right side
    697,454.28x = 376,843,507,215.31
  5. Step 5: Solve for x
    x = 376,843,507,215.31/697,454.28
  6. Step 6: Final answer
    x = 540,312.85

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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.