Home / 1,289,009.27-1,778,844.95-708,244.58

Finding the Fourth Proportional to 1,289,009.27, 1,778,844.95 and 708,244.58

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Solution

The fourth proportional to 1,289,009.27, 1,778,844.95 and 708,244.58 is: 977,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,009.27 : 1,778,844.95 = 708,244.58 : x
  2. Step 2: Convert to fraction form
    1,289,009.27/1,778,844.95 = 708,244.58/x
  3. Step 3: Cross multiply
    1,289,009.27x = 1,778,844.95 × 708,244.58
  4. Step 4: Simplify right side
    1,289,009.27x = 1,259,857,294,497.87
  5. Step 5: Solve for x
    x = 1,259,857,294,497.87/1,289,009.27
  6. Step 6: Final answer
    x = 977,384.20

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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.