Home / 991,585.56-1,487,378.84-654,547.44

Finding the Fourth Proportional to 991,585.56, 1,487,378.84 and 654,547.44

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Solution

The fourth proportional to 991,585.56, 1,487,378.84 and 654,547.44 is: 981,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,585.56 : 1,487,378.84 = 654,547.44 : x
  2. Step 2: Convert to fraction form
    991,585.56/1,487,378.84 = 654,547.44/x
  3. Step 3: Cross multiply
    991,585.56x = 1,487,378.84 × 654,547.44
  4. Step 4: Simplify right side
    991,585.56x = 973,560,008,759.43
  5. Step 5: Solve for x
    x = 973,560,008,759.43/991,585.56
  6. Step 6: Final answer
    x = 981,821.49

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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.