Home / 1,421,875.76-1,962,190.20-818,264.24

Finding the Fourth Proportional to 1,421,875.76, 1,962,190.20 and 818,264.24

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Solution

The fourth proportional to 1,421,875.76, 1,962,190.20 and 818,264.24 is: 1,129,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,875.76 : 1,962,190.20 = 818,264.24 : x
  2. Step 2: Convert to fraction form
    1,421,875.76/1,962,190.20 = 818,264.24/x
  3. Step 3: Cross multiply
    1,421,875.76x = 1,962,190.20 × 818,264.24
  4. Step 4: Simplify right side
    1,421,875.76x = 1,605,590,072,738.45
  5. Step 5: Solve for x
    x = 1,605,590,072,738.45/1,421,875.76
  6. Step 6: Final answer
    x = 1,129,205.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.