Home / 1,201,507.20-1,801,823.40-402,814.80

Finding the Fourth Proportional to 1,201,507.20, 1,801,823.40 and 402,814.80

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Solution

The fourth proportional to 1,201,507.20, 1,801,823.40 and 402,814.80 is: 604,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,507.20 : 1,801,823.40 = 402,814.80 : x
  2. Step 2: Convert to fraction form
    1,201,507.20/1,801,823.40 = 402,814.80/x
  3. Step 3: Cross multiply
    1,201,507.20x = 1,801,823.40 × 402,814.80
  4. Step 4: Simplify right side
    1,201,507.20x = 725,801,132,506.32
  5. Step 5: Solve for x
    x = 725,801,132,506.32/1,201,507.20
  6. Step 6: Final answer
    x = 604,075.56

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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.