Home / 745,747.53-1,029,102.56-455,844.48

Finding the Fourth Proportional to 745,747.53, 1,029,102.56 and 455,844.48

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Solution

The fourth proportional to 745,747.53, 1,029,102.56 and 455,844.48 is: 629,047.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,747.53 : 1,029,102.56 = 455,844.48 : x
  2. Step 2: Convert to fraction form
    745,747.53/1,029,102.56 = 455,844.48/x
  3. Step 3: Cross multiply
    745,747.53x = 1,029,102.56 × 455,844.48
  4. Step 4: Simplify right side
    745,747.53x = 469,110,719,050.65
  5. Step 5: Solve for x
    x = 469,110,719,050.65/745,747.53
  6. Step 6: Final answer
    x = 629,047.63

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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.