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Finding the Fourth Proportional to 988,748, 1,482,597.12 and 455,994.80

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Solution

The fourth proportional to 988,748, 1,482,597.12 and 455,994.80 is: 683,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,748 : 1,482,597.12 = 455,994.80 : x
  2. Step 2: Convert to fraction form
    988,748/1,482,597.12 = 455,994.80/x
  3. Step 3: Cross multiply
    988,748x = 1,482,597.12 × 455,994.80
  4. Step 4: Simplify right side
    988,748x = 676,056,577,214.98
  5. Step 5: Solve for x
    x = 676,056,577,214.98/988,748
  6. Step 6: Final answer
    x = 683,750.13

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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.