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Finding the Fourth Proportional to 716,768.16, 989,132.16 and 501,829.80

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Solution

The fourth proportional to 716,768.16, 989,132.16 and 501,829.80 is: 692,519.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,768.16 : 989,132.16 = 501,829.80 : x
  2. Step 2: Convert to fraction form
    716,768.16/989,132.16 = 501,829.80/x
  3. Step 3: Cross multiply
    716,768.16x = 989,132.16 × 501,829.80
  4. Step 4: Simplify right side
    716,768.16x = 496,375,994,026.37
  5. Step 5: Solve for x
    x = 496,375,994,026.37/716,768.16
  6. Step 6: Final answer
    x = 692,519.59

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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.