Home / 721,918.34-995,811.46-463,708.36

Finding the Fourth Proportional to 721,918.34, 995,811.46 and 463,708.36

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Solution

The fourth proportional to 721,918.34, 995,811.46 and 463,708.36 is: 639,637.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,918.34 : 995,811.46 = 463,708.36 : x
  2. Step 2: Convert to fraction form
    721,918.34/995,811.46 = 463,708.36/x
  3. Step 3: Cross multiply
    721,918.34x = 995,811.46 × 463,708.36
  4. Step 4: Simplify right side
    721,918.34x = 461,766,098,985.81
  5. Step 5: Solve for x
    x = 461,766,098,985.81/721,918.34
  6. Step 6: Final answer
    x = 639,637.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.