Home / 1,078,471.08-1,488,421.89-619,584.78

Finding the Fourth Proportional to 1,078,471.08, 1,488,421.89 and 619,584.78

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Solution

The fourth proportional to 1,078,471.08, 1,488,421.89 and 619,584.78 is: 855,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,471.08 : 1,488,421.89 = 619,584.78 : x
  2. Step 2: Convert to fraction form
    1,078,471.08/1,488,421.89 = 619,584.78/x
  3. Step 3: Cross multiply
    1,078,471.08x = 1,488,421.89 × 619,584.78
  4. Step 4: Simplify right side
    1,078,471.08x = 922,203,549,262.83
  5. Step 5: Solve for x
    x = 922,203,549,262.83/1,078,471.08
  6. Step 6: Final answer
    x = 855,102.72

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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.