Home / 901,047.72-1,351,429.41-421,608.12

Finding the Fourth Proportional to 901,047.72, 1,351,429.41 and 421,608.12

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Solution

The fourth proportional to 901,047.72, 1,351,429.41 and 421,608.12 is: 632,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,047.72 : 1,351,429.41 = 421,608.12 : x
  2. Step 2: Convert to fraction form
    901,047.72/1,351,429.41 = 421,608.12/x
  3. Step 3: Cross multiply
    901,047.72x = 1,351,429.41 × 421,608.12
  4. Step 4: Simplify right side
    901,047.72x = 569,773,612,862.81
  5. Step 5: Solve for x
    x = 569,773,612,862.81/901,047.72
  6. Step 6: Final answer
    x = 632,345.66

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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.