Home / 745,747.64-1,029,102.72-455,844.62

Finding the Fourth Proportional to 745,747.64, 1,029,102.72 and 455,844.62

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Solution

The fourth proportional to 745,747.64, 1,029,102.72 and 455,844.62 is: 629,047.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,747.64 : 1,029,102.72 = 455,844.62 : x
  2. Step 2: Convert to fraction form
    745,747.64/1,029,102.72 = 455,844.62/x
  3. Step 3: Cross multiply
    745,747.64x = 1,029,102.72 × 455,844.62
  4. Step 4: Simplify right side
    745,747.64x = 469,110,938,339.37
  5. Step 5: Solve for x
    x = 469,110,938,339.37/745,747.64
  6. Step 6: Final answer
    x = 629,047.83

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1.5x scale

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.