Home / 1,230,685.37-1,698,517.01-686,856.20

Finding the Fourth Proportional to 1,230,685.37, 1,698,517.01 and 686,856.20

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Solution

The fourth proportional to 1,230,685.37, 1,698,517.01 and 686,856.20 is: 947,957.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,685.37 : 1,698,517.01 = 686,856.20 : x
  2. Step 2: Convert to fraction form
    1,230,685.37/1,698,517.01 = 686,856.20/x
  3. Step 3: Cross multiply
    1,230,685.37x = 1,698,517.01 × 686,856.20
  4. Step 4: Simplify right side
    1,230,685.37x = 1,166,636,927,197.10
  5. Step 5: Solve for x
    x = 1,166,636,927,197.10/1,230,685.37
  6. Step 6: Final answer
    x = 947,957.09

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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.