Home / 1,186,730.89-1,637,693.64-642,866.68

Finding the Fourth Proportional to 1,186,730.89, 1,637,693.64 and 642,866.68

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Solution

The fourth proportional to 1,186,730.89, 1,637,693.64 and 642,866.68 is: 887,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,730.89 : 1,637,693.64 = 642,866.68 : x
  2. Step 2: Convert to fraction form
    1,186,730.89/1,637,693.64 = 642,866.68/x
  3. Step 3: Cross multiply
    1,186,730.89x = 1,637,693.64 × 642,866.68
  4. Step 4: Simplify right side
    1,186,730.89x = 1,052,818,673,203.92
  5. Step 5: Solve for x
    x = 1,052,818,673,203.92/1,186,730.89
  6. Step 6: Final answer
    x = 887,158.73

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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.