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Finding the Fourth Proportional to 710,066.84, 979,887.26 and 387,777.02

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Solution

The fourth proportional to 710,066.84, 979,887.26 and 387,777.02 is: 535,129.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,066.84 : 979,887.26 = 387,777.02 : x
  2. Step 2: Convert to fraction form
    710,066.84/979,887.26 = 387,777.02/x
  3. Step 3: Cross multiply
    710,066.84x = 979,887.26 × 387,777.02
  4. Step 4: Simplify right side
    710,066.84x = 379,977,759,679.88
  5. Step 5: Solve for x
    x = 379,977,759,679.88/710,066.84
  6. Step 6: Final answer
    x = 535,129.57

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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.