Home / 785,661.04-1,179,008.34-430,923.88

Finding the Fourth Proportional to 785,661.04, 1,179,008.34 and 430,923.88

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Solution

The fourth proportional to 785,661.04, 1,179,008.34 and 430,923.88 is: 646,669.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,661.04 : 1,179,008.34 = 430,923.88 : x
  2. Step 2: Convert to fraction form
    785,661.04/1,179,008.34 = 430,923.88/x
  3. Step 3: Cross multiply
    785,661.04x = 1,179,008.34 × 430,923.88
  4. Step 4: Simplify right side
    785,661.04x = 508,062,840,375.50
  5. Step 5: Solve for x
    x = 508,062,840,375.50/785,661.04
  6. Step 6: Final answer
    x = 646,669.26

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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.