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Finding the Fourth Proportional to 1,039,392, 1,559,088 and 251,424

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Solution

The fourth proportional to 1,039,392, 1,559,088 and 251,424 is: 377,136

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,392 : 1,559,088 = 251,424 : x
  2. Step 2: Convert to fraction form
    1,039,392/1,559,088 = 251,424/x
  3. Step 3: Cross multiply
    1,039,392x = 1,559,088 × 251,424
  4. Step 4: Simplify right side
    1,039,392x = 391,992,141,312
  5. Step 5: Solve for x
    x = 391,992,141,312/1,039,392
  6. Step 6: Final answer
    x = 377,136

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.