Home / 917,667.73-1,266,380.81-509,807.73

Finding the Fourth Proportional to 917,667.73, 1,266,380.81 and 509,807.73

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Solution

The fourth proportional to 917,667.73, 1,266,380.81 and 509,807.73 is: 703,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,667.73 : 1,266,380.81 = 509,807.73 : x
  2. Step 2: Convert to fraction form
    917,667.73/1,266,380.81 = 509,807.73/x
  3. Step 3: Cross multiply
    917,667.73x = 1,266,380.81 × 509,807.73
  4. Step 4: Simplify right side
    917,667.73x = 645,610,718,054.41
  5. Step 5: Solve for x
    x = 645,610,718,054.41/917,667.73
  6. Step 6: Final answer
    x = 703,534.29

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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.