Home / 1,645,831.12-2,271,139.72-920,553.04

Finding the Fourth Proportional to 1,645,831.12, 2,271,139.72 and 920,553.04

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Solution

The fourth proportional to 1,645,831.12, 2,271,139.72 and 920,553.04 is: 1,270,303.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,831.12 : 2,271,139.72 = 920,553.04 : x
  2. Step 2: Convert to fraction form
    1,645,831.12/2,271,139.72 = 920,553.04/x
  3. Step 3: Cross multiply
    1,645,831.12x = 2,271,139.72 × 920,553.04
  4. Step 4: Simplify right side
    1,645,831.12x = 2,090,704,573,510.75
  5. Step 5: Solve for x
    x = 2,090,704,573,510.75/1,645,831.12
  6. Step 6: Final answer
    x = 1,270,303.22

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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.