Home / 1,218,539.18-1,681,636.61-674,674.98

Finding the Fourth Proportional to 1,218,539.18, 1,681,636.61 and 674,674.98

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Solution

The fourth proportional to 1,218,539.18, 1,681,636.61 and 674,674.98 is: 931,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,539.18 : 1,681,636.61 = 674,674.98 : x
  2. Step 2: Convert to fraction form
    1,218,539.18/1,681,636.61 = 674,674.98/x
  3. Step 3: Cross multiply
    1,218,539.18x = 1,681,636.61 × 674,674.98
  4. Step 4: Simplify right side
    1,218,539.18x = 1,134,558,146,219.02
  5. Step 5: Solve for x
    x = 1,134,558,146,219.02/1,218,539.18
  6. Step 6: Final answer
    x = 931,080.56

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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.