Home / 917,699.79-1,266,072.39-676,555.71

Finding the Fourth Proportional to 917,699.79, 1,266,072.39 and 676,555.71

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Solution

The fourth proportional to 917,699.79, 1,266,072.39 and 676,555.71 is: 933,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,699.79 : 1,266,072.39 = 676,555.71 : x
  2. Step 2: Convert to fraction form
    917,699.79/1,266,072.39 = 676,555.71/x
  3. Step 3: Cross multiply
    917,699.79x = 1,266,072.39 × 676,555.71
  4. Step 4: Simplify right side
    917,699.79x = 856,568,504,727.85
  5. Step 5: Solve for x
    x = 856,568,504,727.85/917,699.79
  6. Step 6: Final answer
    x = 933,386.40

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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.