Home / 348,529.80-521,628.30-306,539.40

Finding the Fourth Proportional to 348,529.80, 521,628.30 and 306,539.40

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Solution

The fourth proportional to 348,529.80, 521,628.30 and 306,539.40 is: 458,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,529.80 : 521,628.30 = 306,539.40 : x
  2. Step 2: Convert to fraction form
    348,529.80/521,628.30 = 306,539.40/x
  3. Step 3: Cross multiply
    348,529.80x = 521,628.30 × 306,539.40
  4. Step 4: Simplify right side
    348,529.80x = 159,899,626,105.02
  5. Step 5: Solve for x
    x = 159,899,626,105.02/348,529.80
  6. Step 6: Final answer
    x = 458,783.23

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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.