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Finding the Fourth Proportional to 615,053.96, 922,619.86 and 260,021.24

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Solution

The fourth proportional to 615,053.96, 922,619.86 and 260,021.24 is: 390,048.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,053.96 : 922,619.86 = 260,021.24 : x
  2. Step 2: Convert to fraction form
    615,053.96/922,619.86 = 260,021.24/x
  3. Step 3: Cross multiply
    615,053.96x = 922,619.86 × 260,021.24
  4. Step 4: Simplify right side
    615,053.96x = 239,900,760,045.83
  5. Step 5: Solve for x
    x = 239,900,760,045.83/615,053.96
  6. Step 6: Final answer
    x = 390,048.31

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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.