Home / 1,127,157.66-1,555,541.21-668,543.76

Finding the Fourth Proportional to 1,127,157.66, 1,555,541.21 and 668,543.76

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Solution

The fourth proportional to 1,127,157.66, 1,555,541.21 and 668,543.76 is: 922,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,157.66 : 1,555,541.21 = 668,543.76 : x
  2. Step 2: Convert to fraction form
    1,127,157.66/1,555,541.21 = 668,543.76/x
  3. Step 3: Cross multiply
    1,127,157.66x = 1,555,541.21 × 668,543.76
  4. Step 4: Simplify right side
    1,127,157.66x = 1,039,947,371,039.71
  5. Step 5: Solve for x
    x = 1,039,947,371,039.71/1,127,157.66
  6. Step 6: Final answer
    x = 922,628.14

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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.