Home / 930,830.70-1,396,246.05-830,447.40

Finding the Fourth Proportional to 930,830.70, 1,396,246.05 and 830,447.40

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Solution

The fourth proportional to 930,830.70, 1,396,246.05 and 830,447.40 is: 1,245,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,830.70 : 1,396,246.05 = 830,447.40 : x
  2. Step 2: Convert to fraction form
    930,830.70/1,396,246.05 = 830,447.40/x
  3. Step 3: Cross multiply
    930,830.70x = 1,396,246.05 × 830,447.40
  4. Step 4: Simplify right side
    930,830.70x = 1,159,508,901,982.77
  5. Step 5: Solve for x
    x = 1,159,508,901,982.77/930,830.70
  6. Step 6: Final answer
    x = 1,245,671.10

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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.