Home / 868,851.60-1,303,277.40-721,885.20

Finding the Fourth Proportional to 868,851.60, 1,303,277.40 and 721,885.20

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Solution

The fourth proportional to 868,851.60, 1,303,277.40 and 721,885.20 is: 1,082,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,851.60 : 1,303,277.40 = 721,885.20 : x
  2. Step 2: Convert to fraction form
    868,851.60/1,303,277.40 = 721,885.20/x
  3. Step 3: Cross multiply
    868,851.60x = 1,303,277.40 × 721,885.20
  4. Step 4: Simplify right side
    868,851.60x = 940,816,666,554.48
  5. Step 5: Solve for x
    x = 940,816,666,554.48/868,851.60
  6. Step 6: Final answer
    x = 1,082,827.80

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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.