Home / 702,998.20-1,053,719.70-387,681.40

Finding the Fourth Proportional to 702,998.20, 1,053,719.70 and 387,681.40

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Solution

The fourth proportional to 702,998.20, 1,053,719.70 and 387,681.40 is: 581,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,998.20 : 1,053,719.70 = 387,681.40 : x
  2. Step 2: Convert to fraction form
    702,998.20/1,053,719.70 = 387,681.40/x
  3. Step 3: Cross multiply
    702,998.20x = 1,053,719.70 × 387,681.40
  4. Step 4: Simplify right side
    702,998.20x = 408,507,528,503.58
  5. Step 5: Solve for x
    x = 408,507,528,503.58/702,998.20
  6. Step 6: Final answer
    x = 581,093.28

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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.