Home / 786,094.38-1,179,390.78-280,644.51

Finding the Fourth Proportional to 786,094.38, 1,179,390.78 and 280,644.51

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Solution

The fourth proportional to 786,094.38, 1,179,390.78 and 280,644.51 is: 421,055.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,094.38 : 1,179,390.78 = 280,644.51 : x
  2. Step 2: Convert to fraction form
    786,094.38/1,179,390.78 = 280,644.51/x
  3. Step 3: Cross multiply
    786,094.38x = 1,179,390.78 × 280,644.51
  4. Step 4: Simplify right side
    786,094.38x = 330,989,547,551.62
  5. Step 5: Solve for x
    x = 330,989,547,551.62/786,094.38
  6. Step 6: Final answer
    x = 421,055.74

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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.