Home / 858,919.80-1,288,379.70-606,977.40

Finding the Fourth Proportional to 858,919.80, 1,288,379.70 and 606,977.40

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Solution

The fourth proportional to 858,919.80, 1,288,379.70 and 606,977.40 is: 910,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,919.80 : 1,288,379.70 = 606,977.40 : x
  2. Step 2: Convert to fraction form
    858,919.80/1,288,379.70 = 606,977.40/x
  3. Step 3: Cross multiply
    858,919.80x = 1,288,379.70 × 606,977.40
  4. Step 4: Simplify right side
    858,919.80x = 782,017,360,518.78
  5. Step 5: Solve for x
    x = 782,017,360,518.78/858,919.80
  6. Step 6: Final answer
    x = 910,466.10

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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.