Home / 1,201,243.80-1,801,865.70-402,259.80

Finding the Fourth Proportional to 1,201,243.80, 1,801,865.70 and 402,259.80

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Solution

The fourth proportional to 1,201,243.80, 1,801,865.70 and 402,259.80 is: 603,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,243.80 : 1,801,865.70 = 402,259.80 : x
  2. Step 2: Convert to fraction form
    1,201,243.80/1,801,865.70 = 402,259.80/x
  3. Step 3: Cross multiply
    1,201,243.80x = 1,801,865.70 × 402,259.80
  4. Step 4: Simplify right side
    1,201,243.80x = 724,818,136,108.86
  5. Step 5: Solve for x
    x = 724,818,136,108.86/1,201,243.80
  6. Step 6: Final answer
    x = 603,389.70

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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.