Home / 704,811.60-1,055,057.40-388,299.60

Finding the Fourth Proportional to 704,811.60, 1,055,057.40 and 388,299.60

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Solution

The fourth proportional to 704,811.60, 1,055,057.40 and 388,299.60 is: 581,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,811.60 : 1,055,057.40 = 388,299.60 : x
  2. Step 2: Convert to fraction form
    704,811.60/1,055,057.40 = 388,299.60/x
  3. Step 3: Cross multiply
    704,811.60x = 1,055,057.40 × 388,299.60
  4. Step 4: Simplify right side
    704,811.60x = 409,678,366,397.04
  5. Step 5: Solve for x
    x = 409,678,366,397.04/704,811.60
  6. Step 6: Final answer
    x = 581,259.40

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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.