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Finding the Fourth Proportional to 663,283.87, 915,356.24 and 376,852.48

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Solution

The fourth proportional to 663,283.87, 915,356.24 and 376,852.48 is: 520,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,283.87 : 915,356.24 = 376,852.48 : x
  2. Step 2: Convert to fraction form
    663,283.87/915,356.24 = 376,852.48/x
  3. Step 3: Cross multiply
    663,283.87x = 915,356.24 × 376,852.48
  4. Step 4: Simplify right side
    663,283.87x = 344,954,269,127.48
  5. Step 5: Solve for x
    x = 344,954,269,127.48/663,283.87
  6. Step 6: Final answer
    x = 520,070.34

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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.