Home / 1,290,373.20-1,935,503.91-391,794.57

Finding the Fourth Proportional to 1,290,373.20, 1,935,503.91 and 391,794.57

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Solution

The fourth proportional to 1,290,373.20, 1,935,503.91 and 391,794.57 is: 587,674.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,373.20 : 1,935,503.91 = 391,794.57 : x
  2. Step 2: Convert to fraction form
    1,290,373.20/1,935,503.91 = 391,794.57/x
  3. Step 3: Cross multiply
    1,290,373.20x = 1,935,503.91 × 391,794.57
  4. Step 4: Simplify right side
    1,290,373.20x = 758,319,922,151.77
  5. Step 5: Solve for x
    x = 758,319,922,151.77/1,290,373.20
  6. Step 6: Final answer
    x = 587,674.89

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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.