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Finding the Fourth Proportional to 1,020,843, 1,408,763.34 and 568,240.92

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Solution

The fourth proportional to 1,020,843, 1,408,763.34 and 568,240.92 is: 784,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,843 : 1,408,763.34 = 568,240.92 : x
  2. Step 2: Convert to fraction form
    1,020,843/1,408,763.34 = 568,240.92/x
  3. Step 3: Cross multiply
    1,020,843x = 1,408,763.34 × 568,240.92
  4. Step 4: Simplify right side
    1,020,843x = 800,516,976,383.87
  5. Step 5: Solve for x
    x = 800,516,976,383.87/1,020,843
  6. Step 6: Final answer
    x = 784,172.47

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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.