Home / 562,971.20-776,955.72-321,290.14

Finding the Fourth Proportional to 562,971.20, 776,955.72 and 321,290.14

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Solution

The fourth proportional to 562,971.20, 776,955.72 and 321,290.14 is: 443,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,971.20 : 776,955.72 = 321,290.14 : x
  2. Step 2: Convert to fraction form
    562,971.20/776,955.72 = 321,290.14/x
  3. Step 3: Cross multiply
    562,971.20x = 776,955.72 × 321,290.14
  4. Step 4: Simplify right side
    562,971.20x = 249,628,212,052.60
  5. Step 5: Solve for x
    x = 249,628,212,052.60/562,971.20
  6. Step 6: Final answer
    x = 443,412.05

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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.