Home / 780,483.60-1,170,476.26-247,880.05

Finding the Fourth Proportional to 780,483.60, 1,170,476.26 and 247,880.05

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Solution

The fourth proportional to 780,483.60, 1,170,476.26 and 247,880.05 is: 371,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,483.60 : 1,170,476.26 = 247,880.05 : x
  2. Step 2: Convert to fraction form
    780,483.60/1,170,476.26 = 247,880.05/x
  3. Step 3: Cross multiply
    780,483.60x = 1,170,476.26 × 247,880.05
  4. Step 4: Simplify right side
    780,483.60x = 290,137,710,306.72
  5. Step 5: Solve for x
    x = 290,137,710,306.72/780,483.60
  6. Step 6: Final answer
    x = 371,740.94

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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.