Home / 990,320.70-1,485,581.70-341,812.50

Finding the Fourth Proportional to 990,320.70, 1,485,581.70 and 341,812.50

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Solution

The fourth proportional to 990,320.70, 1,485,581.70 and 341,812.50 is: 512,753.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,320.70 : 1,485,581.70 = 341,812.50 : x
  2. Step 2: Convert to fraction form
    990,320.70/1,485,581.70 = 341,812.50/x
  3. Step 3: Cross multiply
    990,320.70x = 1,485,581.70 × 341,812.50
  4. Step 4: Simplify right side
    990,320.70x = 507,790,394,831.25
  5. Step 5: Solve for x
    x = 507,790,394,831.25/990,320.70
  6. Step 6: Final answer
    x = 512,753.49

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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.