Home / 536,070.08-739,777.74-309,715.76

Finding the Fourth Proportional to 536,070.08, 739,777.74 and 309,715.76

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Solution

The fourth proportional to 536,070.08, 739,777.74 and 309,715.76 is: 427,408.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,070.08 : 739,777.74 = 309,715.76 : x
  2. Step 2: Convert to fraction form
    536,070.08/739,777.74 = 309,715.76/x
  3. Step 3: Cross multiply
    536,070.08x = 739,777.74 × 309,715.76
  4. Step 4: Simplify right side
    536,070.08x = 229,120,824,975.18
  5. Step 5: Solve for x
    x = 229,120,824,975.18/536,070.08
  6. Step 6: Final answer
    x = 427,408.34

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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.