Home / 985,216.64-1,359,579.74-555,488.42

Finding the Fourth Proportional to 985,216.64, 1,359,579.74 and 555,488.42

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Solution

The fourth proportional to 985,216.64, 1,359,579.74 and 555,488.42 is: 766,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,216.64 : 1,359,579.74 = 555,488.42 : x
  2. Step 2: Convert to fraction form
    985,216.64/1,359,579.74 = 555,488.42/x
  3. Step 3: Cross multiply
    985,216.64x = 1,359,579.74 × 555,488.42
  4. Step 4: Simplify right side
    985,216.64x = 755,230,801,636.61
  5. Step 5: Solve for x
    x = 755,230,801,636.61/985,216.64
  6. Step 6: Final answer
    x = 766,563.18

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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.