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Finding the Fourth Proportional to 579,741.60, 869,569.20 and 242,695.20

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Solution

The fourth proportional to 579,741.60, 869,569.20 and 242,695.20 is: 364,024.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,741.60 : 869,569.20 = 242,695.20 : x
  2. Step 2: Convert to fraction form
    579,741.60/869,569.20 = 242,695.20/x
  3. Step 3: Cross multiply
    579,741.60x = 869,569.20 × 242,695.20
  4. Step 4: Simplify right side
    579,741.60x = 211,040,270,907.84
  5. Step 5: Solve for x
    x = 211,040,270,907.84/579,741.60
  6. Step 6: Final answer
    x = 364,024.72

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Double scale
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Similar ratio
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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.