Home / 885,738.10-1,328,801.55-286,597.30

Finding the Fourth Proportional to 885,738.10, 1,328,801.55 and 286,597.30

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Solution

The fourth proportional to 885,738.10, 1,328,801.55 and 286,597.30 is: 429,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,738.10 : 1,328,801.55 = 286,597.30 : x
  2. Step 2: Convert to fraction form
    885,738.10/1,328,801.55 = 286,597.30/x
  3. Step 3: Cross multiply
    885,738.10x = 1,328,801.55 × 286,597.30
  4. Step 4: Simplify right side
    885,738.10x = 380,830,936,465.82
  5. Step 5: Solve for x
    x = 380,830,936,465.82/885,738.10
  6. Step 6: Final answer
    x = 429,958.85

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Double scale
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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.