Home / 898,525.64-1,240,015.92-490,665.44

Finding the Fourth Proportional to 898,525.64, 1,240,015.92 and 490,665.44

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Solution

The fourth proportional to 898,525.64, 1,240,015.92 and 490,665.44 is: 677,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,525.64 : 1,240,015.92 = 490,665.44 : x
  2. Step 2: Convert to fraction form
    898,525.64/1,240,015.92 = 490,665.44/x
  3. Step 3: Cross multiply
    898,525.64x = 1,240,015.92 × 490,665.44
  4. Step 4: Simplify right side
    898,525.64x = 608,432,956,993.81
  5. Step 5: Solve for x
    x = 608,432,956,993.81/898,525.64
  6. Step 6: Final answer
    x = 677,145.90

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1.5x scale

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.