Home / 769,828.60-1,153,878.90-370,660.60

Finding the Fourth Proportional to 769,828.60, 1,153,878.90 and 370,660.60

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Solution

The fourth proportional to 769,828.60, 1,153,878.90 and 370,660.60 is: 555,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,828.60 : 1,153,878.90 = 370,660.60 : x
  2. Step 2: Convert to fraction form
    769,828.60/1,153,878.90 = 370,660.60/x
  3. Step 3: Cross multiply
    769,828.60x = 1,153,878.90 × 370,660.60
  4. Step 4: Simplify right side
    769,828.60x = 427,697,445,401.34
  5. Step 5: Solve for x
    x = 427,697,445,401.34/769,828.60
  6. Step 6: Final answer
    x = 555,574.90

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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.