Home / 380,319.60-570,547.20-127,682.30

Finding the Fourth Proportional to 380,319.60, 570,547.20 and 127,682.30

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Solution

The fourth proportional to 380,319.60, 570,547.20 and 127,682.30 is: 191,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,319.60 : 570,547.20 = 127,682.30 : x
  2. Step 2: Convert to fraction form
    380,319.60/570,547.20 = 127,682.30/x
  3. Step 3: Cross multiply
    380,319.60x = 570,547.20 × 127,682.30
  4. Step 4: Simplify right side
    380,319.60x = 72,848,778,754.56
  5. Step 5: Solve for x
    x = 72,848,778,754.56/380,319.60
  6. Step 6: Final answer
    x = 191,546.21

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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.