Home / 644,827.20-967,010.40-290,011.20

Finding the Fourth Proportional to 644,827.20, 967,010.40 and 290,011.20

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Solution

The fourth proportional to 644,827.20, 967,010.40 and 290,011.20 is: 434,913.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,827.20 : 967,010.40 = 290,011.20 : x
  2. Step 2: Convert to fraction form
    644,827.20/967,010.40 = 290,011.20/x
  3. Step 3: Cross multiply
    644,827.20x = 967,010.40 × 290,011.20
  4. Step 4: Simplify right side
    644,827.20x = 280,443,846,516.48
  5. Step 5: Solve for x
    x = 280,443,846,516.48/644,827.20
  6. Step 6: Final answer
    x = 434,913.18

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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.