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Finding the Fourth Proportional to 615,597.84, 849,878.46 and 469,254.78

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Solution

The fourth proportional to 615,597.84, 849,878.46 and 469,254.78 is: 647,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,597.84 : 849,878.46 = 469,254.78 : x
  2. Step 2: Convert to fraction form
    615,597.84/849,878.46 = 469,254.78/x
  3. Step 3: Cross multiply
    615,597.84x = 849,878.46 × 469,254.78
  4. Step 4: Simplify right side
    615,597.84x = 398,809,529,774.04
  5. Step 5: Solve for x
    x = 398,809,529,774.04/615,597.84
  6. Step 6: Final answer
    x = 647,841.02

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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.