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Finding the Fourth Proportional to 502,505.59, 693,146.64 and 330,443.32

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Solution

The fourth proportional to 502,505.59, 693,146.64 and 330,443.32 is: 455,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,505.59 : 693,146.64 = 330,443.32 : x
  2. Step 2: Convert to fraction form
    502,505.59/693,146.64 = 330,443.32/x
  3. Step 3: Cross multiply
    502,505.59x = 693,146.64 × 330,443.32
  4. Step 4: Simplify right side
    502,505.59x = 229,045,676,968.45
  5. Step 5: Solve for x
    x = 229,045,676,968.45/502,505.59
  6. Step 6: Final answer
    x = 455,807.22

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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.