Home / 495,730.80-742,775.40-285,001.20

Finding the Fourth Proportional to 495,730.80, 742,775.40 and 285,001.20

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Solution

The fourth proportional to 495,730.80, 742,775.40 and 285,001.20 is: 427,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,730.80 : 742,775.40 = 285,001.20 : x
  2. Step 2: Convert to fraction form
    495,730.80/742,775.40 = 285,001.20/x
  3. Step 3: Cross multiply
    495,730.80x = 742,775.40 × 285,001.20
  4. Step 4: Simplify right side
    495,730.80x = 211,691,880,330.48
  5. Step 5: Solve for x
    x = 211,691,880,330.48/495,730.80
  6. Step 6: Final answer
    x = 427,029.91

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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.