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Finding the Fourth Proportional to 615,627.20, 922,663.20 and 299,403.20

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Solution

The fourth proportional to 615,627.20, 922,663.20 and 299,403.20 is: 448,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,627.20 : 922,663.20 = 299,403.20 : x
  2. Step 2: Convert to fraction form
    615,627.20/922,663.20 = 299,403.20/x
  3. Step 3: Cross multiply
    615,627.20x = 922,663.20 × 299,403.20
  4. Step 4: Simplify right side
    615,627.20x = 276,248,314,602.24
  5. Step 5: Solve for x
    x = 276,248,314,602.24/615,627.20
  6. Step 6: Final answer
    x = 448,726.62

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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.