Home / 495,419.85-742,939.62-210,930.03

Finding the Fourth Proportional to 495,419.85, 742,939.62 and 210,930.03

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Solution

The fourth proportional to 495,419.85, 742,939.62 and 210,930.03 is: 316,314.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,419.85 : 742,939.62 = 210,930.03 : x
  2. Step 2: Convert to fraction form
    495,419.85/742,939.62 = 210,930.03/x
  3. Step 3: Cross multiply
    495,419.85x = 742,939.62 × 210,930.03
  4. Step 4: Simplify right side
    495,419.85x = 156,708,276,334.79
  5. Step 5: Solve for x
    x = 156,708,276,334.79/495,419.85
  6. Step 6: Final answer
    x = 316,314.08

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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.