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Finding the Fourth Proportional to 578,517.55, 798,089.32 and 374,634.14

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Solution

The fourth proportional to 578,517.55, 798,089.32 and 374,634.14 is: 516,823.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,517.55 : 798,089.32 = 374,634.14 : x
  2. Step 2: Convert to fraction form
    578,517.55/798,089.32 = 374,634.14/x
  3. Step 3: Cross multiply
    578,517.55x = 798,089.32 × 374,634.14
  4. Step 4: Simplify right side
    578,517.55x = 298,991,506,041.39
  5. Step 5: Solve for x
    x = 298,991,506,041.39/578,517.55
  6. Step 6: Final answer
    x = 516,823.57

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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.