Home / 788,676.30-1,183,014.45-389,378.70

Finding the Fourth Proportional to 788,676.30, 1,183,014.45 and 389,378.70

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Solution

The fourth proportional to 788,676.30, 1,183,014.45 and 389,378.70 is: 584,068.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,676.30 : 1,183,014.45 = 389,378.70 : x
  2. Step 2: Convert to fraction form
    788,676.30/1,183,014.45 = 389,378.70/x
  3. Step 3: Cross multiply
    788,676.30x = 1,183,014.45 × 389,378.70
  4. Step 4: Simplify right side
    788,676.30x = 460,640,628,622.22
  5. Step 5: Solve for x
    x = 460,640,628,622.22/788,676.30
  6. Step 6: Final answer
    x = 584,068.05

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Double scale
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Similar ratio
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1.5x scale

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.