Home / 867,329.70-1,300,994.55-778,974.90

Finding the Fourth Proportional to 867,329.70, 1,300,994.55 and 778,974.90

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Solution

The fourth proportional to 867,329.70, 1,300,994.55 and 778,974.90 is: 1,168,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,329.70 : 1,300,994.55 = 778,974.90 : x
  2. Step 2: Convert to fraction form
    867,329.70/1,300,994.55 = 778,974.90/x
  3. Step 3: Cross multiply
    867,329.70x = 1,300,994.55 × 778,974.90
  4. Step 4: Simplify right side
    867,329.70x = 1,013,442,099,486.80
  5. Step 5: Solve for x
    x = 1,013,442,099,486.80/867,329.70
  6. Step 6: Final answer
    x = 1,168,462.35

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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.