Home / 430,322.52-644,809.14-272,217

Finding the Fourth Proportional to 430,322.52, 644,809.14 and 272,217

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Solution

The fourth proportional to 430,322.52, 644,809.14 and 272,217 is: 407,898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,322.52 : 644,809.14 = 272,217 : x
  2. Step 2: Convert to fraction form
    430,322.52/644,809.14 = 272,217/x
  3. Step 3: Cross multiply
    430,322.52x = 644,809.14 × 272,217
  4. Step 4: Simplify right side
    430,322.52x = 175,528,009,663.38
  5. Step 5: Solve for x
    x = 175,528,009,663.38/430,322.52
  6. Step 6: Final answer
    x = 407,898.73

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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.