Home / 1,116,595.71-1,540,407.90-686,621.79

Finding the Fourth Proportional to 1,116,595.71, 1,540,407.90 and 686,621.79

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Solution

The fourth proportional to 1,116,595.71, 1,540,407.90 and 686,621.79 is: 947,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,595.71 : 1,540,407.90 = 686,621.79 : x
  2. Step 2: Convert to fraction form
    1,116,595.71/1,540,407.90 = 686,621.79/x
  3. Step 3: Cross multiply
    1,116,595.71x = 1,540,407.90 × 686,621.79
  4. Step 4: Simplify right side
    1,116,595.71x = 1,057,677,629,628.14
  5. Step 5: Solve for x
    x = 1,057,677,629,628.14/1,116,595.71
  6. Step 6: Final answer
    x = 947,234.19

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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.