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Finding the Fourth Proportional to 562,662.02, 776,536 and 321,004.20

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Solution

The fourth proportional to 562,662.02, 776,536 and 321,004.20 is: 443,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,662.02 : 776,536 = 321,004.20 : x
  2. Step 2: Convert to fraction form
    562,662.02/776,536 = 321,004.20/x
  3. Step 3: Cross multiply
    562,662.02x = 776,536 × 321,004.20
  4. Step 4: Simplify right side
    562,662.02x = 249,271,317,451.20
  5. Step 5: Solve for x
    x = 249,271,317,451.20/562,662.02
  6. Step 6: Final answer
    x = 443,021.40

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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.