Home / 867,334.20-1,301,001.30-778,979.40

Finding the Fourth Proportional to 867,334.20, 1,301,001.30 and 778,979.40

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Solution

The fourth proportional to 867,334.20, 1,301,001.30 and 778,979.40 is: 1,168,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,334.20 : 1,301,001.30 = 778,979.40 : x
  2. Step 2: Convert to fraction form
    867,334.20/1,301,001.30 = 778,979.40/x
  3. Step 3: Cross multiply
    867,334.20x = 1,301,001.30 × 778,979.40
  4. Step 4: Simplify right side
    867,334.20x = 1,013,453,212,073.22
  5. Step 5: Solve for x
    x = 1,013,453,212,073.22/867,334.20
  6. Step 6: Final answer
    x = 1,168,469.10

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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.