Home / 770,334.77-1,155,276.39-290,216.17

Finding the Fourth Proportional to 770,334.77, 1,155,276.39 and 290,216.17

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Solution

The fourth proportional to 770,334.77, 1,155,276.39 and 290,216.17 is: 435,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,334.77 : 1,155,276.39 = 290,216.17 : x
  2. Step 2: Convert to fraction form
    770,334.77/1,155,276.39 = 290,216.17/x
  3. Step 3: Cross multiply
    770,334.77x = 1,155,276.39 × 290,216.17
  4. Step 4: Simplify right side
    770,334.77x = 335,279,885,220.73
  5. Step 5: Solve for x
    x = 335,279,885,220.73/770,334.77
  6. Step 6: Final answer
    x = 435,239.19

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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.