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Finding the Fourth Proportional to 922,266, 1,272,727.08 and 498,330

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Solution

The fourth proportional to 922,266, 1,272,727.08 and 498,330 is: 687,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,266 : 1,272,727.08 = 498,330 : x
  2. Step 2: Convert to fraction form
    922,266/1,272,727.08 = 498,330/x
  3. Step 3: Cross multiply
    922,266x = 1,272,727.08 × 498,330
  4. Step 4: Simplify right side
    922,266x = 634,238,085,776.40
  5. Step 5: Solve for x
    x = 634,238,085,776.40/922,266
  6. Step 6: Final answer
    x = 687,695.40

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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.