Home / 1,169,108.64-1,752,609.84-420,628

Finding the Fourth Proportional to 1,169,108.64, 1,752,609.84 and 420,628

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Solution

The fourth proportional to 1,169,108.64, 1,752,609.84 and 420,628 is: 630,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,108.64 : 1,752,609.84 = 420,628 : x
  2. Step 2: Convert to fraction form
    1,169,108.64/1,752,609.84 = 420,628/x
  3. Step 3: Cross multiply
    1,169,108.64x = 1,752,609.84 × 420,628
  4. Step 4: Simplify right side
    1,169,108.64x = 737,196,771,779.52
  5. Step 5: Solve for x
    x = 737,196,771,779.52/1,169,108.64
  6. Step 6: Final answer
    x = 630,563.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.