Home / 791,153.59-1,091,795.30-428,577.45

Finding the Fourth Proportional to 791,153.59, 1,091,795.30 and 428,577.45

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Solution

The fourth proportional to 791,153.59, 1,091,795.30 and 428,577.45 is: 591,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,153.59 : 1,091,795.30 = 428,577.45 : x
  2. Step 2: Convert to fraction form
    791,153.59/1,091,795.30 = 428,577.45/x
  3. Step 3: Cross multiply
    791,153.59x = 1,091,795.30 × 428,577.45
  4. Step 4: Simplify right side
    791,153.59x = 467,918,845,595.99
  5. Step 5: Solve for x
    x = 467,918,845,595.99/791,153.59
  6. Step 6: Final answer
    x = 591,438.69

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Double scale
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1.5x scale

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.