Home / 645,142.47-962,880.15-634,500.02

Finding the Fourth Proportional to 645,142.47, 962,880.15 and 634,500.02

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Solution

The fourth proportional to 645,142.47, 962,880.15 and 634,500.02 is: 946,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,142.47 : 962,880.15 = 634,500.02 : x
  2. Step 2: Convert to fraction form
    645,142.47/962,880.15 = 634,500.02/x
  3. Step 3: Cross multiply
    645,142.47x = 962,880.15 × 634,500.02
  4. Step 4: Simplify right side
    645,142.47x = 610,947,469,618.20
  5. Step 5: Solve for x
    x = 610,947,469,618.20/645,142.47
  6. Step 6: Final answer
    x = 946,996.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.