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Finding the Fourth Proportional to 346,573.80, 519,860.70 and 305,895.60

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Solution

The fourth proportional to 346,573.80, 519,860.70 and 305,895.60 is: 458,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,573.80 : 519,860.70 = 305,895.60 : x
  2. Step 2: Convert to fraction form
    346,573.80/519,860.70 = 305,895.60/x
  3. Step 3: Cross multiply
    346,573.80x = 519,860.70 × 305,895.60
  4. Step 4: Simplify right side
    346,573.80x = 159,023,100,742.92
  5. Step 5: Solve for x
    x = 159,023,100,742.92/346,573.80
  6. Step 6: Final answer
    x = 458,843.40

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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.