Home / 864,705.60-1,298,516.40-722,404.80

Finding the Fourth Proportional to 864,705.60, 1,298,516.40 and 722,404.80

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Solution

The fourth proportional to 864,705.60, 1,298,516.40 and 722,404.80 is: 1,084,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,705.60 : 1,298,516.40 = 722,404.80 : x
  2. Step 2: Convert to fraction form
    864,705.60/1,298,516.40 = 722,404.80/x
  3. Step 3: Cross multiply
    864,705.60x = 1,298,516.40 × 722,404.80
  4. Step 4: Simplify right side
    864,705.60x = 938,054,480,238.72
  5. Step 5: Solve for x
    x = 938,054,480,238.72/864,705.60
  6. Step 6: Final answer
    x = 1,084,825.26

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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.