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Finding the Fourth Proportional to 452,639.60, 624,382.80 and 282,578.48

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Solution

The fourth proportional to 452,639.60, 624,382.80 and 282,578.48 is: 389,796.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,639.60 : 624,382.80 = 282,578.48 : x
  2. Step 2: Convert to fraction form
    452,639.60/624,382.80 = 282,578.48/x
  3. Step 3: Cross multiply
    452,639.60x = 624,382.80 × 282,578.48
  4. Step 4: Simplify right side
    452,639.60x = 176,437,142,562.14
  5. Step 5: Solve for x
    x = 176,437,142,562.14/452,639.60
  6. Step 6: Final answer
    x = 389,796.08

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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.