Home / 1,457,569.92-2,011,441.23-812,989.62

Finding the Fourth Proportional to 1,457,569.92, 2,011,441.23 and 812,989.62

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Solution

The fourth proportional to 1,457,569.92, 2,011,441.23 and 812,989.62 is: 1,121,922.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,569.92 : 2,011,441.23 = 812,989.62 : x
  2. Step 2: Convert to fraction form
    1,457,569.92/2,011,441.23 = 812,989.62/x
  3. Step 3: Cross multiply
    1,457,569.92x = 2,011,441.23 × 812,989.62
  4. Step 4: Simplify right side
    1,457,569.92x = 1,635,280,841,230.03
  5. Step 5: Solve for x
    x = 1,635,280,841,230.03/1,457,569.92
  6. Step 6: Final answer
    x = 1,121,922.74

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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.