Home / 985,488.66-1,359,961.63-555,907.18

Finding the Fourth Proportional to 985,488.66, 1,359,961.63 and 555,907.18

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Solution

The fourth proportional to 985,488.66, 1,359,961.63 and 555,907.18 is: 767,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,488.66 : 1,359,961.63 = 555,907.18 : x
  2. Step 2: Convert to fraction form
    985,488.66/1,359,961.63 = 555,907.18/x
  3. Step 3: Cross multiply
    985,488.66x = 1,359,961.63 × 555,907.18
  4. Step 4: Simplify right side
    985,488.66x = 756,012,434,641.50
  5. Step 5: Solve for x
    x = 756,012,434,641.50/985,488.66
  6. Step 6: Final answer
    x = 767,144.73

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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.