Home / 869,040.40-1,199,399.36-481,941.92

Finding the Fourth Proportional to 869,040.40, 1,199,399.36 and 481,941.92

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Solution

The fourth proportional to 869,040.40, 1,199,399.36 and 481,941.92 is: 665,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,040.40 : 1,199,399.36 = 481,941.92 : x
  2. Step 2: Convert to fraction form
    869,040.40/1,199,399.36 = 481,941.92/x
  3. Step 3: Cross multiply
    869,040.40x = 1,199,399.36 × 481,941.92
  4. Step 4: Simplify right side
    869,040.40x = 578,040,830,405.17
  5. Step 5: Solve for x
    x = 578,040,830,405.17/869,040.40
  6. Step 6: Final answer
    x = 665,148.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.