Home / 785,259.81-1,178,886.37-667,678.49

Finding the Fourth Proportional to 785,259.81, 1,178,886.37 and 667,678.49

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Solution

The fourth proportional to 785,259.81, 1,178,886.37 and 667,678.49 is: 1,002,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,259.81 : 1,178,886.37 = 667,678.49 : x
  2. Step 2: Convert to fraction form
    785,259.81/1,178,886.37 = 667,678.49/x
  3. Step 3: Cross multiply
    785,259.81x = 1,178,886.37 × 667,678.49
  4. Step 4: Simplify right side
    785,259.81x = 787,117,071,403.18
  5. Step 5: Solve for x
    x = 787,117,071,403.18/785,259.81
  6. Step 6: Final answer
    x = 1,002,365.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.