Home / 380,470.61-570,743.67-140,647.35

Finding the Fourth Proportional to 380,470.61, 570,743.67 and 140,647.35

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Solution

The fourth proportional to 380,470.61, 570,743.67 and 140,647.35 is: 210,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,470.61 : 570,743.67 = 140,647.35 : x
  2. Step 2: Convert to fraction form
    380,470.61/570,743.67 = 140,647.35/x
  3. Step 3: Cross multiply
    380,470.61x = 570,743.67 × 140,647.35
  4. Step 4: Simplify right side
    380,470.61x = 80,273,584,714.77
  5. Step 5: Solve for x
    x = 80,273,584,714.77/380,470.61
  6. Step 6: Final answer
    x = 210,984.98

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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.