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Finding the Fourth Proportional to 575,611.80, 863,417.70 and 365,659.80

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Solution

The fourth proportional to 575,611.80, 863,417.70 and 365,659.80 is: 548,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,611.80 : 863,417.70 = 365,659.80 : x
  2. Step 2: Convert to fraction form
    575,611.80/863,417.70 = 365,659.80/x
  3. Step 3: Cross multiply
    575,611.80x = 863,417.70 × 365,659.80
  4. Step 4: Simplify right side
    575,611.80x = 315,717,143,498.46
  5. Step 5: Solve for x
    x = 315,717,143,498.46/575,611.80
  6. Step 6: Final answer
    x = 548,489.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.