Home / 1,201,235.70-1,801,416.15-402,543.30

Finding the Fourth Proportional to 1,201,235.70, 1,801,416.15 and 402,543.30

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Solution

The fourth proportional to 1,201,235.70, 1,801,416.15 and 402,543.30 is: 603,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,235.70 : 1,801,416.15 = 402,543.30 : x
  2. Step 2: Convert to fraction form
    1,201,235.70/1,801,416.15 = 402,543.30/x
  3. Step 3: Cross multiply
    1,201,235.70x = 1,801,416.15 × 402,543.30
  4. Step 4: Simplify right side
    1,201,235.70x = 725,148,001,694.30
  5. Step 5: Solve for x
    x = 725,148,001,694.30/1,201,235.70
  6. Step 6: Final answer
    x = 603,668.37

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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.