Home / 1,005,420.75-1,507,281.50-436,371.54

Finding the Fourth Proportional to 1,005,420.75, 1,507,281.50 and 436,371.54

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Solution

The fourth proportional to 1,005,420.75, 1,507,281.50 and 436,371.54 is: 654,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,420.75 : 1,507,281.50 = 436,371.54 : x
  2. Step 2: Convert to fraction form
    1,005,420.75/1,507,281.50 = 436,371.54/x
  3. Step 3: Cross multiply
    1,005,420.75x = 1,507,281.50 × 436,371.54
  4. Step 4: Simplify right side
    1,005,420.75x = 657,734,747,186.65
  5. Step 5: Solve for x
    x = 657,734,747,186.65/1,005,420.75
  6. Step 6: Final answer
    x = 654,188.55

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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.