Home / 1,490,636.46-2,057,077.44-811,572.96

Finding the Fourth Proportional to 1,490,636.46, 2,057,077.44 and 811,572.96

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Solution

The fourth proportional to 1,490,636.46, 2,057,077.44 and 811,572.96 is: 1,119,970.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,636.46 : 2,057,077.44 = 811,572.96 : x
  2. Step 2: Convert to fraction form
    1,490,636.46/2,057,077.44 = 811,572.96/x
  3. Step 3: Cross multiply
    1,490,636.46x = 2,057,077.44 × 811,572.96
  4. Step 4: Simplify right side
    1,490,636.46x = 1,669,468,426,930.02
  5. Step 5: Solve for x
    x = 1,669,468,426,930.02/1,490,636.46
  6. Step 6: Final answer
    x = 1,119,970.21

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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.