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Finding the Fourth Proportional to 770,372.72, 1,062,780 and 464,275.16

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Solution

The fourth proportional to 770,372.72, 1,062,780 and 464,275.16 is: 640,498.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,372.72 : 1,062,780 = 464,275.16 : x
  2. Step 2: Convert to fraction form
    770,372.72/1,062,780 = 464,275.16/x
  3. Step 3: Cross multiply
    770,372.72x = 1,062,780 × 464,275.16
  4. Step 4: Simplify right side
    770,372.72x = 493,422,354,544.80
  5. Step 5: Solve for x
    x = 493,422,354,544.80/770,372.72
  6. Step 6: Final answer
    x = 640,498.22

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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.