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Finding the Fourth Proportional to 493,335.51, 680,804.64 and 266,981.01

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Solution

The fourth proportional to 493,335.51, 680,804.64 and 266,981.01 is: 368,434.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,335.51 : 680,804.64 = 266,981.01 : x
  2. Step 2: Convert to fraction form
    493,335.51/680,804.64 = 266,981.01/x
  3. Step 3: Cross multiply
    493,335.51x = 680,804.64 × 266,981.01
  4. Step 4: Simplify right side
    493,335.51x = 181,761,910,399.89
  5. Step 5: Solve for x
    x = 181,761,910,399.89/493,335.51
  6. Step 6: Final answer
    x = 368,434.68

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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.