Home / 730,140.80-1,095,211.20-256,764.65

Finding the Fourth Proportional to 730,140.80, 1,095,211.20 and 256,764.65

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Solution

The fourth proportional to 730,140.80, 1,095,211.20 and 256,764.65 is: 385,146.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,140.80 : 1,095,211.20 = 256,764.65 : x
  2. Step 2: Convert to fraction form
    730,140.80/1,095,211.20 = 256,764.65/x
  3. Step 3: Cross multiply
    730,140.80x = 1,095,211.20 × 256,764.65
  4. Step 4: Simplify right side
    730,140.80x = 281,211,520,444.08
  5. Step 5: Solve for x
    x = 281,211,520,444.08/730,140.80
  6. Step 6: Final answer
    x = 385,146.98

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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.