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Finding the Fourth Proportional to 346,617.86, 479,395.80 and 310,794.80

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Solution

The fourth proportional to 346,617.86, 479,395.80 and 310,794.80 is: 429,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,617.86 : 479,395.80 = 310,794.80 : x
  2. Step 2: Convert to fraction form
    346,617.86/479,395.80 = 310,794.80/x
  3. Step 3: Cross multiply
    346,617.86x = 479,395.80 × 310,794.80
  4. Step 4: Simplify right side
    346,617.86x = 148,993,719,384.86
  5. Step 5: Solve for x
    x = 148,993,719,384.86/346,617.86
  6. Step 6: Final answer
    x = 429,850.10

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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.