Home / 1,218,579.69-1,681,697.74-735,134.46

Finding the Fourth Proportional to 1,218,579.69, 1,681,697.74 and 735,134.46

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Solution

The fourth proportional to 1,218,579.69, 1,681,697.74 and 735,134.46 is: 1,014,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,579.69 : 1,681,697.74 = 735,134.46 : x
  2. Step 2: Convert to fraction form
    1,218,579.69/1,681,697.74 = 735,134.46/x
  3. Step 3: Cross multiply
    1,218,579.69x = 1,681,697.74 × 735,134.46
  4. Step 4: Simplify right side
    1,218,579.69x = 1,236,273,959,978.12
  5. Step 5: Solve for x
    x = 1,236,273,959,978.12/1,218,579.69
  6. Step 6: Final answer
    x = 1,014,520.40

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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.