Home / 788,520.89-1,182,781.21-189,482.05

Finding the Fourth Proportional to 788,520.89, 1,182,781.21 and 189,482.05

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Solution

The fourth proportional to 788,520.89, 1,182,781.21 and 189,482.05 is: 284,223.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,520.89 : 1,182,781.21 = 189,482.05 : x
  2. Step 2: Convert to fraction form
    788,520.89/1,182,781.21 = 189,482.05/x
  3. Step 3: Cross multiply
    788,520.89x = 1,182,781.21 × 189,482.05
  4. Step 4: Simplify right side
    788,520.89x = 224,115,808,372.28
  5. Step 5: Solve for x
    x = 224,115,808,372.28/788,520.89
  6. Step 6: Final answer
    x = 284,223.04

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Double scale
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Similar ratio
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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.