Home / 791,054.45-1,091,655.35-428,477.18

Finding the Fourth Proportional to 791,054.45, 1,091,655.35 and 428,477.18

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Solution

The fourth proportional to 791,054.45, 1,091,655.35 and 428,477.18 is: 591,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,054.45 : 1,091,655.35 = 428,477.18 : x
  2. Step 2: Convert to fraction form
    791,054.45/1,091,655.35 = 428,477.18/x
  3. Step 3: Cross multiply
    791,054.45x = 1,091,655.35 × 428,477.18
  4. Step 4: Simplify right side
    791,054.45x = 467,749,409,700.24
  5. Step 5: Solve for x
    x = 467,749,409,700.24/791,054.45
  6. Step 6: Final answer
    x = 591,298.63

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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.