Home / 868,938.80-1,303,408.20-711,345.20

Finding the Fourth Proportional to 868,938.80, 1,303,408.20 and 711,345.20

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Solution

The fourth proportional to 868,938.80, 1,303,408.20 and 711,345.20 is: 1,067,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,938.80 : 1,303,408.20 = 711,345.20 : x
  2. Step 2: Convert to fraction form
    868,938.80/1,303,408.20 = 711,345.20/x
  3. Step 3: Cross multiply
    868,938.80x = 1,303,408.20 × 711,345.20
  4. Step 4: Simplify right side
    868,938.80x = 927,173,166,710.64
  5. Step 5: Solve for x
    x = 927,173,166,710.64/868,938.80
  6. Step 6: Final answer
    x = 1,067,017.80

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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.