Home / 1,626,009.12-2,438,134.02-1,291,203.72

Finding the Fourth Proportional to 1,626,009.12, 2,438,134.02 and 1,291,203.72

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Solution

The fourth proportional to 1,626,009.12, 2,438,134.02 and 1,291,203.72 is: 1,936,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,009.12 : 2,438,134.02 = 1,291,203.72 : x
  2. Step 2: Convert to fraction form
    1,626,009.12/2,438,134.02 = 1,291,203.72/x
  3. Step 3: Cross multiply
    1,626,009.12x = 2,438,134.02 × 1,291,203.72
  4. Step 4: Simplify right side
    1,626,009.12x = 3,148,127,716,482.55
  5. Step 5: Solve for x
    x = 3,148,127,716,482.55/1,626,009.12
  6. Step 6: Final answer
    x = 1,936,107.05

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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.