Home / 1,488,400.39-2,054,834.09-1,138,881.88

Finding the Fourth Proportional to 1,488,400.39, 2,054,834.09 and 1,138,881.88

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Solution

The fourth proportional to 1,488,400.39, 2,054,834.09 and 1,138,881.88 is: 1,572,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,400.39 : 2,054,834.09 = 1,138,881.88 : x
  2. Step 2: Convert to fraction form
    1,488,400.39/2,054,834.09 = 1,138,881.88/x
  3. Step 3: Cross multiply
    1,488,400.39x = 2,054,834.09 × 1,138,881.88
  4. Step 4: Simplify right side
    1,488,400.39x = 2,340,213,311,507.29
  5. Step 5: Solve for x
    x = 2,340,213,311,507.29/1,488,400.39
  6. Step 6: Final answer
    x = 1,572,300.93

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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.