Home / 790,817.03-1,185,980.20-285,312.30

Finding the Fourth Proportional to 790,817.03, 1,185,980.20 and 285,312.30

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Solution

The fourth proportional to 790,817.03, 1,185,980.20 and 285,312.30 is: 427,879.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,817.03 : 1,185,980.20 = 285,312.30 : x
  2. Step 2: Convert to fraction form
    790,817.03/1,185,980.20 = 285,312.30/x
  3. Step 3: Cross multiply
    790,817.03x = 1,185,980.20 × 285,312.30
  4. Step 4: Simplify right side
    790,817.03x = 338,374,738,616.46
  5. Step 5: Solve for x
    x = 338,374,738,616.46/790,817.03
  6. Step 6: Final answer
    x = 427,879.93

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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.