Home / 1,521,389.22-2,099,658-842,325.72

Finding the Fourth Proportional to 1,521,389.22, 2,099,658 and 842,325.72

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Solution

The fourth proportional to 1,521,389.22, 2,099,658 and 842,325.72 is: 1,162,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,389.22 : 2,099,658 = 842,325.72 : x
  2. Step 2: Convert to fraction form
    1,521,389.22/2,099,658 = 842,325.72/x
  3. Step 3: Cross multiply
    1,521,389.22x = 2,099,658 × 842,325.72
  4. Step 4: Simplify right side
    1,521,389.22x = 1,768,595,936,603.76
  5. Step 5: Solve for x
    x = 1,768,595,936,603.76/1,521,389.22
  6. Step 6: Final answer
    x = 1,162,487.49

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Double scale
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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.