Home / 780,279.50-1,170,419.25-189,303.50

Finding the Fourth Proportional to 780,279.50, 1,170,419.25 and 189,303.50

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Solution

The fourth proportional to 780,279.50, 1,170,419.25 and 189,303.50 is: 283,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,279.50 : 1,170,419.25 = 189,303.50 : x
  2. Step 2: Convert to fraction form
    780,279.50/1,170,419.25 = 189,303.50/x
  3. Step 3: Cross multiply
    780,279.50x = 1,170,419.25 × 189,303.50
  4. Step 4: Simplify right side
    780,279.50x = 221,564,460,492.38
  5. Step 5: Solve for x
    x = 221,564,460,492.38/780,279.50
  6. Step 6: Final answer
    x = 283,955.25

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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.