Home / 1,620,124.90-2,430,178.59-660,576.79

Finding the Fourth Proportional to 1,620,124.90, 2,430,178.59 and 660,576.79

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Solution

The fourth proportional to 1,620,124.90, 2,430,178.59 and 660,576.79 is: 990,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,124.90 : 2,430,178.59 = 660,576.79 : x
  2. Step 2: Convert to fraction form
    1,620,124.90/2,430,178.59 = 660,576.79/x
  3. Step 3: Cross multiply
    1,620,124.90x = 2,430,178.59 × 660,576.79
  4. Step 4: Simplify right side
    1,620,124.90x = 1,605,319,572,108.93
  5. Step 5: Solve for x
    x = 1,605,319,572,108.93/1,620,124.90
  6. Step 6: Final answer
    x = 990,861.61

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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.