Home / 1,930,803.72-2,664,636.48-1,115,041.68

Finding the Fourth Proportional to 1,930,803.72, 2,664,636.48 and 1,115,041.68

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Solution

The fourth proportional to 1,930,803.72, 2,664,636.48 and 1,115,041.68 is: 1,538,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930,803.72 : 2,664,636.48 = 1,115,041.68 : x
  2. Step 2: Convert to fraction form
    1,930,803.72/2,664,636.48 = 1,115,041.68/x
  3. Step 3: Cross multiply
    1,930,803.72x = 2,664,636.48 × 1,115,041.68
  4. Step 4: Simplify right side
    1,930,803.72x = 2,971,180,737,248.49
  5. Step 5: Solve for x
    x = 2,971,180,737,248.49/1,930,803.72
  6. Step 6: Final answer
    x = 1,538,831.06

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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.