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Finding the Fourth Proportional to 697,384.15, 962,404.34 and 391,482.59

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Solution

The fourth proportional to 697,384.15, 962,404.34 and 391,482.59 is: 540,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,384.15 : 962,404.34 = 391,482.59 : x
  2. Step 2: Convert to fraction form
    697,384.15/962,404.34 = 391,482.59/x
  3. Step 3: Cross multiply
    697,384.15x = 962,404.34 × 391,482.59
  4. Step 4: Simplify right side
    697,384.15x = 376,764,536,881.01
  5. Step 5: Solve for x
    x = 376,764,536,881.01/697,384.15
  6. Step 6: Final answer
    x = 540,253.95

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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.