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Finding the Fourth Proportional to 536,630.70, 740,547.95 and 307,186.73

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Solution

The fourth proportional to 536,630.70, 740,547.95 and 307,186.73 is: 423,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,630.70 : 740,547.95 = 307,186.73 : x
  2. Step 2: Convert to fraction form
    536,630.70/740,547.95 = 307,186.73/x
  3. Step 3: Cross multiply
    536,630.70x = 740,547.95 × 307,186.73
  4. Step 4: Simplify right side
    536,630.70x = 227,486,497,930.03
  5. Step 5: Solve for x
    x = 227,486,497,930.03/536,630.70
  6. Step 6: Final answer
    x = 423,916.29

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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.