Home / 495,320.40-742,980.60-258,608.03

Finding the Fourth Proportional to 495,320.40, 742,980.60 and 258,608.03

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Solution

The fourth proportional to 495,320.40, 742,980.60 and 258,608.03 is: 387,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,320.40 : 742,980.60 = 258,608.03 : x
  2. Step 2: Convert to fraction form
    495,320.40/742,980.60 = 258,608.03/x
  3. Step 3: Cross multiply
    495,320.40x = 742,980.60 × 258,608.03
  4. Step 4: Simplify right side
    495,320.40x = 192,140,745,579.32
  5. Step 5: Solve for x
    x = 192,140,745,579.32/495,320.40
  6. Step 6: Final answer
    x = 387,912.04

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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.