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Finding the Fourth Proportional to 562,693.62, 776,560.32 and 320,981.52

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Solution

The fourth proportional to 562,693.62, 776,560.32 and 320,981.52 is: 442,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,693.62 : 776,560.32 = 320,981.52 : x
  2. Step 2: Convert to fraction form
    562,693.62/776,560.32 = 320,981.52/x
  3. Step 3: Cross multiply
    562,693.62x = 776,560.32 × 320,981.52
  4. Step 4: Simplify right side
    562,693.62x = 249,261,511,885.29
  5. Step 5: Solve for x
    x = 249,261,511,885.29/562,693.62
  6. Step 6: Final answer
    x = 442,979.10

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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.