Home / 780,051.80-1,170,077.70-306,752.60

Finding the Fourth Proportional to 780,051.80, 1,170,077.70 and 306,752.60

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Solution

The fourth proportional to 780,051.80, 1,170,077.70 and 306,752.60 is: 460,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,051.80 : 1,170,077.70 = 306,752.60 : x
  2. Step 2: Convert to fraction form
    780,051.80/1,170,077.70 = 306,752.60/x
  3. Step 3: Cross multiply
    780,051.80x = 1,170,077.70 × 306,752.60
  4. Step 4: Simplify right side
    780,051.80x = 358,924,376,677.02
  5. Step 5: Solve for x
    x = 358,924,376,677.02/780,051.80
  6. Step 6: Final answer
    x = 460,128.90

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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.