Home / 756,053.70-1,134,080.55-306,989.70

Finding the Fourth Proportional to 756,053.70, 1,134,080.55 and 306,989.70

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Solution

The fourth proportional to 756,053.70, 1,134,080.55 and 306,989.70 is: 460,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,053.70 : 1,134,080.55 = 306,989.70 : x
  2. Step 2: Convert to fraction form
    756,053.70/1,134,080.55 = 306,989.70/x
  3. Step 3: Cross multiply
    756,053.70x = 1,134,080.55 × 306,989.70
  4. Step 4: Simplify right side
    756,053.70x = 348,151,047,820.34
  5. Step 5: Solve for x
    x = 348,151,047,820.34/756,053.70
  6. Step 6: Final answer
    x = 460,484.55

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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.