Home / 830,015.40-1,245,168.90-297,845.40

Finding the Fourth Proportional to 830,015.40, 1,245,168.90 and 297,845.40

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Solution

The fourth proportional to 830,015.40, 1,245,168.90 and 297,845.40 is: 446,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,015.40 : 1,245,168.90 = 297,845.40 : x
  2. Step 2: Convert to fraction form
    830,015.40/1,245,168.90 = 297,845.40/x
  3. Step 3: Cross multiply
    830,015.40x = 1,245,168.90 × 297,845.40
  4. Step 4: Simplify right side
    830,015.40x = 370,867,829,088.06
  5. Step 5: Solve for x
    x = 370,867,829,088.06/830,015.40
  6. Step 6: Final answer
    x = 446,820.42

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Double scale
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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.