Home / 689,743.35-1,033,561.01-290,165.09

Finding the Fourth Proportional to 689,743.35, 1,033,561.01 and 290,165.09

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Solution

The fourth proportional to 689,743.35, 1,033,561.01 and 290,165.09 is: 434,804.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,743.35 : 1,033,561.01 = 290,165.09 : x
  2. Step 2: Convert to fraction form
    689,743.35/1,033,561.01 = 290,165.09/x
  3. Step 3: Cross multiply
    689,743.35x = 1,033,561.01 × 290,165.09
  4. Step 4: Simplify right side
    689,743.35x = 299,903,319,044.75
  5. Step 5: Solve for x
    x = 299,903,319,044.75/689,743.35
  6. Step 6: Final answer
    x = 434,804.22

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1.5x scale

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.