Home / 1,840,400.16-2,761,861.29-642,322.49

Finding the Fourth Proportional to 1,840,400.16, 2,761,861.29 and 642,322.49

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Solution

The fourth proportional to 1,840,400.16, 2,761,861.29 and 642,322.49 is: 963,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840,400.16 : 2,761,861.29 = 642,322.49 : x
  2. Step 2: Convert to fraction form
    1,840,400.16/2,761,861.29 = 642,322.49/x
  3. Step 3: Cross multiply
    1,840,400.16x = 2,761,861.29 × 642,322.49
  4. Step 4: Simplify right side
    1,840,400.16x = 1,774,005,607,018.11
  5. Step 5: Solve for x
    x = 1,774,005,607,018.11/1,840,400.16
  6. Step 6: Final answer
    x = 963,923.85

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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.