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Finding the Fourth Proportional to 551,652.93, 761,275.82 and 306,631.27

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Solution

The fourth proportional to 551,652.93, 761,275.82 and 306,631.27 is: 423,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,652.93 : 761,275.82 = 306,631.27 : x
  2. Step 2: Convert to fraction form
    551,652.93/761,275.82 = 306,631.27/x
  3. Step 3: Cross multiply
    551,652.93x = 761,275.82 × 306,631.27
  4. Step 4: Simplify right side
    551,652.93x = 233,430,966,167.36
  5. Step 5: Solve for x
    x = 233,430,966,167.36/551,652.93
  6. Step 6: Final answer
    x = 423,148.24

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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.