Home / 1,423,020.80-2,133,801.60-425,619.20

Finding the Fourth Proportional to 1,423,020.80, 2,133,801.60 and 425,619.20

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Solution

The fourth proportional to 1,423,020.80, 2,133,801.60 and 425,619.20 is: 638,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,020.80 : 2,133,801.60 = 425,619.20 : x
  2. Step 2: Convert to fraction form
    1,423,020.80/2,133,801.60 = 425,619.20/x
  3. Step 3: Cross multiply
    1,423,020.80x = 2,133,801.60 × 425,619.20
  4. Step 4: Simplify right side
    1,423,020.80x = 908,186,929,950.72
  5. Step 5: Solve for x
    x = 908,186,929,950.72/1,423,020.80
  6. Step 6: Final answer
    x = 638,210.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.