Home / 1,295,505.20-1,943,257.80-409,041.20

Finding the Fourth Proportional to 1,295,505.20, 1,943,257.80 and 409,041.20

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Solution

The fourth proportional to 1,295,505.20, 1,943,257.80 and 409,041.20 is: 613,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,505.20 : 1,943,257.80 = 409,041.20 : x
  2. Step 2: Convert to fraction form
    1,295,505.20/1,943,257.80 = 409,041.20/x
  3. Step 3: Cross multiply
    1,295,505.20x = 1,943,257.80 × 409,041.20
  4. Step 4: Simplify right side
    1,295,505.20x = 794,872,502,421.36
  5. Step 5: Solve for x
    x = 794,872,502,421.36/1,295,505.20
  6. Step 6: Final answer
    x = 613,561.80

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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.