Home / 868,801.60-1,303,202.40-721,835.20

Finding the Fourth Proportional to 868,801.60, 1,303,202.40 and 721,835.20

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Solution

The fourth proportional to 868,801.60, 1,303,202.40 and 721,835.20 is: 1,082,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,801.60 : 1,303,202.40 = 721,835.20 : x
  2. Step 2: Convert to fraction form
    868,801.60/1,303,202.40 = 721,835.20/x
  3. Step 3: Cross multiply
    868,801.60x = 1,303,202.40 × 721,835.20
  4. Step 4: Simplify right side
    868,801.60x = 940,697,365,044.48
  5. Step 5: Solve for x
    x = 940,697,365,044.48/868,801.60
  6. Step 6: Final answer
    x = 1,082,752.80

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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.