Home / 1,240,469.70-1,856,038.95-820,565.70

Finding the Fourth Proportional to 1,240,469.70, 1,856,038.95 and 820,565.70

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Solution

The fourth proportional to 1,240,469.70, 1,856,038.95 and 820,565.70 is: 1,227,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,469.70 : 1,856,038.95 = 820,565.70 : x
  2. Step 2: Convert to fraction form
    1,240,469.70/1,856,038.95 = 820,565.70/x
  3. Step 3: Cross multiply
    1,240,469.70x = 1,856,038.95 × 820,565.70
  4. Step 4: Simplify right side
    1,240,469.70x = 1,523,001,900,234.02
  5. Step 5: Solve for x
    x = 1,523,001,900,234.02/1,240,469.70
  6. Step 6: Final answer
    x = 1,227,762.27

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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.