Home / 380,317.59-570,544.20-127,680.30

Finding the Fourth Proportional to 380,317.59, 570,544.20 and 127,680.30

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Solution

The fourth proportional to 380,317.59, 570,544.20 and 127,680.30 is: 191,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,317.59 : 570,544.20 = 127,680.30 : x
  2. Step 2: Convert to fraction form
    380,317.59/570,544.20 = 127,680.30/x
  3. Step 3: Cross multiply
    380,317.59x = 570,544.20 × 127,680.30
  4. Step 4: Simplify right side
    380,317.59x = 72,847,254,619.26
  5. Step 5: Solve for x
    x = 72,847,254,619.26/380,317.59
  6. Step 6: Final answer
    x = 191,543.22

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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.