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Finding the Fourth Proportional to 896,398.94, 1,236,994.54 and 488,492.10

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Solution

The fourth proportional to 896,398.94, 1,236,994.54 and 488,492.10 is: 674,099.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,398.94 : 1,236,994.54 = 488,492.10 : x
  2. Step 2: Convert to fraction form
    896,398.94/1,236,994.54 = 488,492.10/x
  3. Step 3: Cross multiply
    896,398.94x = 1,236,994.54 × 488,492.10
  4. Step 4: Simplify right side
    896,398.94x = 604,262,059,311.90
  5. Step 5: Solve for x
    x = 604,262,059,311.90/896,398.94
  6. Step 6: Final answer
    x = 674,099.48

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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.