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Finding the Fourth Proportional to 669,054.70, 922,875.50 and 396,929.94

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Solution

The fourth proportional to 669,054.70, 922,875.50 and 396,929.94 is: 547,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,054.70 : 922,875.50 = 396,929.94 : x
  2. Step 2: Convert to fraction form
    669,054.70/922,875.50 = 396,929.94/x
  3. Step 3: Cross multiply
    669,054.70x = 922,875.50 × 396,929.94
  4. Step 4: Simplify right side
    669,054.70x = 366,316,916,842.47
  5. Step 5: Solve for x
    x = 366,316,916,842.47/669,054.70
  6. Step 6: Final answer
    x = 547,514.15

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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.