Home / 770,333.83-1,155,274.98-290,215.23

Finding the Fourth Proportional to 770,333.83, 1,155,274.98 and 290,215.23

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Solution

The fourth proportional to 770,333.83, 1,155,274.98 and 290,215.23 is: 435,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,333.83 : 1,155,274.98 = 290,215.23 : x
  2. Step 2: Convert to fraction form
    770,333.83/1,155,274.98 = 290,215.23/x
  3. Step 3: Cross multiply
    770,333.83x = 1,155,274.98 × 290,215.23
  4. Step 4: Simplify right side
    770,333.83x = 335,278,390,245.82
  5. Step 5: Solve for x
    x = 335,278,390,245.82/770,333.83
  6. Step 6: Final answer
    x = 435,237.78

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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.