Home / 771,720.62-1,157,624.67-239,317.34

Finding the Fourth Proportional to 771,720.62, 1,157,624.67 and 239,317.34

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Solution

The fourth proportional to 771,720.62, 1,157,624.67 and 239,317.34 is: 358,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,720.62 : 1,157,624.67 = 239,317.34 : x
  2. Step 2: Convert to fraction form
    771,720.62/1,157,624.67 = 239,317.34/x
  3. Step 3: Cross multiply
    771,720.62x = 1,157,624.67 × 239,317.34
  4. Step 4: Simplify right side
    771,720.62x = 277,039,656,742.78
  5. Step 5: Solve for x
    x = 277,039,656,742.78/771,720.62
  6. Step 6: Final answer
    x = 358,989.57

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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.