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Finding the Fourth Proportional to 607,999.81, 911,507.77 and 253,280.29

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Solution

The fourth proportional to 607,999.81, 911,507.77 and 253,280.29 is: 379,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,999.81 : 911,507.77 = 253,280.29 : x
  2. Step 2: Convert to fraction form
    607,999.81/911,507.77 = 253,280.29/x
  3. Step 3: Cross multiply
    607,999.81x = 911,507.77 × 253,280.29
  4. Step 4: Simplify right side
    607,999.81x = 230,866,952,322.85
  5. Step 5: Solve for x
    x = 230,866,952,322.85/607,999.81
  6. Step 6: Final answer
    x = 379,715.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.