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Finding the Fourth Proportional to 562,754.25, 776,674.98 and 320,981.40

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Solution

The fourth proportional to 562,754.25, 776,674.98 and 320,981.40 is: 442,996.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,754.25 : 776,674.98 = 320,981.40 : x
  2. Step 2: Convert to fraction form
    562,754.25/776,674.98 = 320,981.40/x
  3. Step 3: Cross multiply
    562,754.25x = 776,674.98 × 320,981.40
  4. Step 4: Simplify right side
    562,754.25x = 249,298,222,425.37
  5. Step 5: Solve for x
    x = 249,298,222,425.37/562,754.25
  6. Step 6: Final answer
    x = 442,996.61

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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.