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Finding the Fourth Proportional to 979,751.40, 1,351,963.62 and 549,933

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Solution

The fourth proportional to 979,751.40, 1,351,963.62 and 549,933 is: 758,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,751.40 : 1,351,963.62 = 549,933 : x
  2. Step 2: Convert to fraction form
    979,751.40/1,351,963.62 = 549,933/x
  3. Step 3: Cross multiply
    979,751.40x = 1,351,963.62 × 549,933
  4. Step 4: Simplify right side
    979,751.40x = 743,489,409,437.46
  5. Step 5: Solve for x
    x = 743,489,409,437.46/979,751.40
  6. Step 6: Final answer
    x = 758,855.16

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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.