Home / 1,186,735.68-1,637,700.18-642,871.41

Finding the Fourth Proportional to 1,186,735.68, 1,637,700.18 and 642,871.41

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Solution

The fourth proportional to 1,186,735.68, 1,637,700.18 and 642,871.41 is: 887,165.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,735.68 : 1,637,700.18 = 642,871.41 : x
  2. Step 2: Convert to fraction form
    1,186,735.68/1,637,700.18 = 642,871.41/x
  3. Step 3: Cross multiply
    1,186,735.68x = 1,637,700.18 × 642,871.41
  4. Step 4: Simplify right side
    1,186,735.68x = 1,052,830,627,595.59
  5. Step 5: Solve for x
    x = 1,052,830,627,595.59/1,186,735.68
  6. Step 6: Final answer
    x = 887,165.22

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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.