Home / 885,764.10-1,328,840.55-286,623.30

Finding the Fourth Proportional to 885,764.10, 1,328,840.55 and 286,623.30

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Solution

The fourth proportional to 885,764.10, 1,328,840.55 and 286,623.30 is: 429,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,764.10 : 1,328,840.55 = 286,623.30 : x
  2. Step 2: Convert to fraction form
    885,764.10/1,328,840.55 = 286,623.30/x
  3. Step 3: Cross multiply
    885,764.10x = 1,328,840.55 × 286,623.30
  4. Step 4: Simplify right side
    885,764.10x = 380,876,663,614.82
  5. Step 5: Solve for x
    x = 380,876,663,614.82/885,764.10
  6. Step 6: Final answer
    x = 429,997.86

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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.