Home / 1,115,775.60-1,539,739.89-632,385.63

Finding the Fourth Proportional to 1,115,775.60, 1,539,739.89 and 632,385.63

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Solution

The fourth proportional to 1,115,775.60, 1,539,739.89 and 632,385.63 is: 872,674.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,775.60 : 1,539,739.89 = 632,385.63 : x
  2. Step 2: Convert to fraction form
    1,115,775.60/1,539,739.89 = 632,385.63/x
  3. Step 3: Cross multiply
    1,115,775.60x = 1,539,739.89 × 632,385.63
  4. Step 4: Simplify right side
    1,115,775.60x = 973,709,380,373.78
  5. Step 5: Solve for x
    x = 973,709,380,373.78/1,115,775.60
  6. Step 6: Final answer
    x = 872,674.92

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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.