Home / 645,571.49-890,996.76-373,592.52

Finding the Fourth Proportional to 645,571.49, 890,996.76 and 373,592.52

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Solution

The fourth proportional to 645,571.49, 890,996.76 and 373,592.52 is: 515,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,571.49 : 890,996.76 = 373,592.52 : x
  2. Step 2: Convert to fraction form
    645,571.49/890,996.76 = 373,592.52/x
  3. Step 3: Cross multiply
    645,571.49x = 890,996.76 × 373,592.52
  4. Step 4: Simplify right side
    645,571.49x = 332,869,724,880.24
  5. Step 5: Solve for x
    x = 332,869,724,880.24/645,571.49
  6. Step 6: Final answer
    x = 515,620.24

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Double scale
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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.