Home / 1,078,412.98-1,488,027.01-642,822.52

Finding the Fourth Proportional to 1,078,412.98, 1,488,027.01 and 642,822.52

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Solution

The fourth proportional to 1,078,412.98, 1,488,027.01 and 642,822.52 is: 886,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,412.98 : 1,488,027.01 = 642,822.52 : x
  2. Step 2: Convert to fraction form
    1,078,412.98/1,488,027.01 = 642,822.52/x
  3. Step 3: Cross multiply
    1,078,412.98x = 1,488,027.01 × 642,822.52
  4. Step 4: Simplify right side
    1,078,412.98x = 956,537,269,182.15
  5. Step 5: Solve for x
    x = 956,537,269,182.15/1,078,412.98
  6. Step 6: Final answer
    x = 886,986.05

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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.