Home / 1,005,010.80-1,507,055.40-443,756.40

Finding the Fourth Proportional to 1,005,010.80, 1,507,055.40 and 443,756.40

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Solution

The fourth proportional to 1,005,010.80, 1,507,055.40 and 443,756.40 is: 665,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,010.80 : 1,507,055.40 = 443,756.40 : x
  2. Step 2: Convert to fraction form
    1,005,010.80/1,507,055.40 = 443,756.40/x
  3. Step 3: Cross multiply
    1,005,010.80x = 1,507,055.40 × 443,756.40
  4. Step 4: Simplify right side
    1,005,010.80x = 668,765,478,904.56
  5. Step 5: Solve for x
    x = 668,765,478,904.56/1,005,010.80
  6. Step 6: Final answer
    x = 665,431.14

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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.