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Finding the Fourth Proportional to 718,588.32, 991,722 and 536,984.94

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Solution

The fourth proportional to 718,588.32, 991,722 and 536,984.94 is: 741,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,588.32 : 991,722 = 536,984.94 : x
  2. Step 2: Convert to fraction form
    718,588.32/991,722 = 536,984.94/x
  3. Step 3: Cross multiply
    718,588.32x = 991,722 × 536,984.94
  4. Step 4: Simplify right side
    718,588.32x = 532,539,778,666.68
  5. Step 5: Solve for x
    x = 532,539,778,666.68/718,588.32
  6. Step 6: Final answer
    x = 741,091.62

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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.