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Finding the Fourth Proportional to 385,600.14, 577,646.91 and 265,635.90

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Solution

The fourth proportional to 385,600.14, 577,646.91 and 265,635.90 is: 397,934.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,600.14 : 577,646.91 = 265,635.90 : x
  2. Step 2: Convert to fraction form
    385,600.14/577,646.91 = 265,635.90/x
  3. Step 3: Cross multiply
    385,600.14x = 577,646.91 × 265,635.90
  4. Step 4: Simplify right side
    385,600.14x = 153,443,756,820.07
  5. Step 5: Solve for x
    x = 153,443,756,820.07/385,600.14
  6. Step 6: Final answer
    x = 397,934.91

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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.