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Finding the Fourth Proportional to 579,492.36, 869,486.40 and 242,611.74

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Solution

The fourth proportional to 579,492.36, 869,486.40 and 242,611.74 is: 364,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,492.36 : 869,486.40 = 242,611.74 : x
  2. Step 2: Convert to fraction form
    579,492.36/869,486.40 = 242,611.74/x
  3. Step 3: Cross multiply
    579,492.36x = 869,486.40 × 242,611.74
  4. Step 4: Simplify right side
    579,492.36x = 210,947,608,410.34
  5. Step 5: Solve for x
    x = 210,947,608,410.34/579,492.36
  6. Step 6: Final answer
    x = 364,021.38

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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.