Home / 770,015.67-1,154,208.97-290,035.77

Finding the Fourth Proportional to 770,015.67, 1,154,208.97 and 290,035.77

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Solution

The fourth proportional to 770,015.67, 1,154,208.97 and 290,035.77 is: 434,746.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,015.67 : 1,154,208.97 = 290,035.77 : x
  2. Step 2: Convert to fraction form
    770,015.67/1,154,208.97 = 290,035.77/x
  3. Step 3: Cross multiply
    770,015.67x = 1,154,208.97 × 290,035.77
  4. Step 4: Simplify right side
    770,015.67x = 334,761,887,354.86
  5. Step 5: Solve for x
    x = 334,761,887,354.86/770,015.67
  6. Step 6: Final answer
    x = 434,746.85

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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.