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Finding the Fourth Proportional to 360,812.52, 497,592.32 and 309,809.28

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Solution

The fourth proportional to 360,812.52, 497,592.32 and 309,809.28 is: 427,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,812.52 : 497,592.32 = 309,809.28 : x
  2. Step 2: Convert to fraction form
    360,812.52/497,592.32 = 309,809.28/x
  3. Step 3: Cross multiply
    360,812.52x = 497,592.32 × 309,809.28
  4. Step 4: Simplify right side
    360,812.52x = 154,158,718,392.73
  5. Step 5: Solve for x
    x = 154,158,718,392.73/360,812.52
  6. Step 6: Final answer
    x = 427,254.35

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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.