Home / 1,395,686.63-1,925,129.00-1,007,856.20

Finding the Fourth Proportional to 1,395,686.63, 1,925,129.00 and 1,007,856.20

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Solution

The fourth proportional to 1,395,686.63, 1,925,129.00 and 1,007,856.20 is: 1,390,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,686.63 : 1,925,129.00 = 1,007,856.20 : x
  2. Step 2: Convert to fraction form
    1,395,686.63/1,925,129.00 = 1,007,856.20/x
  3. Step 3: Cross multiply
    1,395,686.63x = 1,925,129.00 × 1,007,856.20
  4. Step 4: Simplify right side
    1,395,686.63x = 1,940,253,183,784.87
  5. Step 5: Solve for x
    x = 1,940,253,183,784.87/1,395,686.63
  6. Step 6: Final answer
    x = 1,390,178.25

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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.