Home / 1,230,355.80-1,845,792.90-520,018.20

Finding the Fourth Proportional to 1,230,355.80, 1,845,792.90 and 520,018.20

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Solution

The fourth proportional to 1,230,355.80, 1,845,792.90 and 520,018.20 is: 780,136.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,355.80 : 1,845,792.90 = 520,018.20 : x
  2. Step 2: Convert to fraction form
    1,230,355.80/1,845,792.90 = 520,018.20/x
  3. Step 3: Cross multiply
    1,230,355.80x = 1,845,792.90 × 520,018.20
  4. Step 4: Simplify right side
    1,230,355.80x = 959,845,901,430.78
  5. Step 5: Solve for x
    x = 959,845,901,430.78/1,230,355.80
  6. Step 6: Final answer
    x = 780,136.85

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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.