Home / 868,386.60-1,302,579.90-720,930.60

Finding the Fourth Proportional to 868,386.60, 1,302,579.90 and 720,930.60

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Solution

The fourth proportional to 868,386.60, 1,302,579.90 and 720,930.60 is: 1,081,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,386.60 : 1,302,579.90 = 720,930.60 : x
  2. Step 2: Convert to fraction form
    868,386.60/1,302,579.90 = 720,930.60/x
  3. Step 3: Cross multiply
    868,386.60x = 1,302,579.90 × 720,930.60
  4. Step 4: Simplify right side
    868,386.60x = 939,069,708,854.94
  5. Step 5: Solve for x
    x = 939,069,708,854.94/868,386.60
  6. Step 6: Final answer
    x = 1,081,395.90

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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.