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Finding the Fourth Proportional to 520,445.06, 780,670.02 and 160,611.47

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Solution

The fourth proportional to 520,445.06, 780,670.02 and 160,611.47 is: 240,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,445.06 : 780,670.02 = 160,611.47 : x
  2. Step 2: Convert to fraction form
    520,445.06/780,670.02 = 160,611.47/x
  3. Step 3: Cross multiply
    520,445.06x = 780,670.02 × 160,611.47
  4. Step 4: Simplify right side
    520,445.06x = 125,384,559,497.13
  5. Step 5: Solve for x
    x = 125,384,559,497.13/520,445.06
  6. Step 6: Final answer
    x = 240,917.95

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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.