Home / 1,538,363.16-2,308,370.94-640,424.70

Finding the Fourth Proportional to 1,538,363.16, 2,308,370.94 and 640,424.70

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Solution

The fourth proportional to 1,538,363.16, 2,308,370.94 and 640,424.70 is: 960,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,363.16 : 2,308,370.94 = 640,424.70 : x
  2. Step 2: Convert to fraction form
    1,538,363.16/2,308,370.94 = 640,424.70/x
  3. Step 3: Cross multiply
    1,538,363.16x = 2,308,370.94 × 640,424.70
  4. Step 4: Simplify right side
    1,538,363.16x = 1,478,337,766,738.22
  5. Step 5: Solve for x
    x = 1,478,337,766,738.22/1,538,363.16
  6. Step 6: Final answer
    x = 960,981.00

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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.