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Finding the Fourth Proportional to 562,952.76, 776,859.64 and 321,230.96

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Solution

The fourth proportional to 562,952.76, 776,859.64 and 321,230.96 is: 443,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,952.76 : 776,859.64 = 321,230.96 : x
  2. Step 2: Convert to fraction form
    562,952.76/776,859.64 = 321,230.96/x
  3. Step 3: Cross multiply
    562,952.76x = 776,859.64 × 321,230.96
  4. Step 4: Simplify right side
    562,952.76x = 249,551,367,942.45
  5. Step 5: Solve for x
    x = 249,551,367,942.45/562,952.76
  6. Step 6: Final answer
    x = 443,290.07

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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.