Home / 1,019,918.40-1,529,812.80-345,998.40

Finding the Fourth Proportional to 1,019,918.40, 1,529,812.80 and 345,998.40

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Solution

The fourth proportional to 1,019,918.40, 1,529,812.80 and 345,998.40 is: 518,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,918.40 : 1,529,812.80 = 345,998.40 : x
  2. Step 2: Convert to fraction form
    1,019,918.40/1,529,812.80 = 345,998.40/x
  3. Step 3: Cross multiply
    1,019,918.40x = 1,529,812.80 × 345,998.40
  4. Step 4: Simplify right side
    1,019,918.40x = 529,312,781,099.52
  5. Step 5: Solve for x
    x = 529,312,781,099.52/1,019,918.40
  6. Step 6: Final answer
    x = 518,975.62

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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.