Home / 1,590,978.09-2,195,599.55-902,678.91

Finding the Fourth Proportional to 1,590,978.09, 2,195,599.55 and 902,678.91

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Solution

The fourth proportional to 1,590,978.09, 2,195,599.55 and 902,678.91 is: 1,245,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,978.09 : 2,195,599.55 = 902,678.91 : x
  2. Step 2: Convert to fraction form
    1,590,978.09/2,195,599.55 = 902,678.91/x
  3. Step 3: Cross multiply
    1,590,978.09x = 2,195,599.55 × 902,678.91
  4. Step 4: Simplify right side
    1,590,978.09x = 1,981,921,408,590.49
  5. Step 5: Solve for x
    x = 1,981,921,408,590.49/1,590,978.09
  6. Step 6: Final answer
    x = 1,245,725.14

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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.