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Finding the Fourth Proportional to 670,405.51, 924,254.08 and 455,171.95

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Solution

The fourth proportional to 670,405.51, 924,254.08 and 455,171.95 is: 627,522.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,405.51 : 924,254.08 = 455,171.95 : x
  2. Step 2: Convert to fraction form
    670,405.51/924,254.08 = 455,171.95/x
  3. Step 3: Cross multiply
    670,405.51x = 924,254.08 × 455,171.95
  4. Step 4: Simplify right side
    670,405.51x = 420,694,531,889.06
  5. Step 5: Solve for x
    x = 420,694,531,889.06/670,405.51
  6. Step 6: Final answer
    x = 627,522.49

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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.