Home / 867,110.20-1,300,665.30-778,755.40

Finding the Fourth Proportional to 867,110.20, 1,300,665.30 and 778,755.40

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Solution

The fourth proportional to 867,110.20, 1,300,665.30 and 778,755.40 is: 1,168,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,110.20 : 1,300,665.30 = 778,755.40 : x
  2. Step 2: Convert to fraction form
    867,110.20/1,300,665.30 = 778,755.40/x
  3. Step 3: Cross multiply
    867,110.20x = 1,300,665.30 × 778,755.40
  4. Step 4: Simplify right side
    867,110.20x = 1,012,900,125,967.62
  5. Step 5: Solve for x
    x = 1,012,900,125,967.62/867,110.20
  6. Step 6: Final answer
    x = 1,168,133.10

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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.