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Finding the Fourth Proportional to 493,316, 680,781 and 266,966.36

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Solution

The fourth proportional to 493,316, 680,781 and 266,966.36 is: 368,416.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,316 : 680,781 = 266,966.36 : x
  2. Step 2: Convert to fraction form
    493,316/680,781 = 266,966.36/x
  3. Step 3: Cross multiply
    493,316x = 680,781 × 266,966.36
  4. Step 4: Simplify right side
    493,316x = 181,745,625,527.16
  5. Step 5: Solve for x
    x = 181,745,625,527.16/493,316
  6. Step 6: Final answer
    x = 368,416.24

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1.5x scale

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.