Home / 1,726,389.60-2,381,661.76-1,646,345.40

Finding the Fourth Proportional to 1,726,389.60, 2,381,661.76 and 1,646,345.40

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Solution

The fourth proportional to 1,726,389.60, 2,381,661.76 and 1,646,345.40 is: 2,271,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726,389.60 : 2,381,661.76 = 1,646,345.40 : x
  2. Step 2: Convert to fraction form
    1,726,389.60/2,381,661.76 = 1,646,345.40/x
  3. Step 3: Cross multiply
    1,726,389.60x = 2,381,661.76 × 1,646,345.40
  4. Step 4: Simplify right side
    1,726,389.60x = 3,921,037,882,931.90
  5. Step 5: Solve for x
    x = 3,921,037,882,931.90/1,726,389.60
  6. Step 6: Final answer
    x = 2,271,235.81

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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.