Home / 885,541.18-1,328,213.34-316,899.30

Finding the Fourth Proportional to 885,541.18, 1,328,213.34 and 316,899.30

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Solution

The fourth proportional to 885,541.18, 1,328,213.34 and 316,899.30 is: 475,313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,541.18 : 1,328,213.34 = 316,899.30 : x
  2. Step 2: Convert to fraction form
    885,541.18/1,328,213.34 = 316,899.30/x
  3. Step 3: Cross multiply
    885,541.18x = 1,328,213.34 × 316,899.30
  4. Step 4: Simplify right side
    885,541.18x = 420,909,877,696.66
  5. Step 5: Solve for x
    x = 420,909,877,696.66/885,541.18
  6. Step 6: Final answer
    x = 475,313.73

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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.