Home / 885,801.27-1,328,912.63-286,762.38

Finding the Fourth Proportional to 885,801.27, 1,328,912.63 and 286,762.38

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Solution

The fourth proportional to 885,801.27, 1,328,912.63 and 286,762.38 is: 430,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,801.27 : 1,328,912.63 = 286,762.38 : x
  2. Step 2: Convert to fraction form
    885,801.27/1,328,912.63 = 286,762.38/x
  3. Step 3: Cross multiply
    885,801.27x = 1,328,912.63 × 286,762.38
  4. Step 4: Simplify right side
    885,801.27x = 381,082,148,590.86
  5. Step 5: Solve for x
    x = 381,082,148,590.86/885,801.27
  6. Step 6: Final answer
    x = 430,211.79

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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.