Home / 1,019,905.20-1,529,809.20-345,920.40

Finding the Fourth Proportional to 1,019,905.20, 1,529,809.20 and 345,920.40

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Solution

The fourth proportional to 1,019,905.20, 1,529,809.20 and 345,920.40 is: 518,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,905.20 : 1,529,809.20 = 345,920.40 : x
  2. Step 2: Convert to fraction form
    1,019,905.20/1,529,809.20 = 345,920.40/x
  3. Step 3: Cross multiply
    1,019,905.20x = 1,529,809.20 × 345,920.40
  4. Step 4: Simplify right side
    1,019,905.20x = 529,192,210,387.68
  5. Step 5: Solve for x
    x = 529,192,210,387.68/1,019,905.20
  6. Step 6: Final answer
    x = 518,864.12

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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.