Home / 770,164.80-1,154,469.60-349,742.40

Finding the Fourth Proportional to 770,164.80, 1,154,469.60 and 349,742.40

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Solution

The fourth proportional to 770,164.80, 1,154,469.60 and 349,742.40 is: 524,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,164.80 : 1,154,469.60 = 349,742.40 : x
  2. Step 2: Convert to fraction form
    770,164.80/1,154,469.60 = 349,742.40/x
  3. Step 3: Cross multiply
    770,164.80x = 1,154,469.60 × 349,742.40
  4. Step 4: Simplify right side
    770,164.80x = 403,766,968,631.04
  5. Step 5: Solve for x
    x = 403,766,968,631.04/770,164.80
  6. Step 6: Final answer
    x = 524,260.48

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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.