Home / 769,030.86-1,061,352.75-463,261.60

Finding the Fourth Proportional to 769,030.86, 1,061,352.75 and 463,261.60

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Solution

The fourth proportional to 769,030.86, 1,061,352.75 and 463,261.60 is: 639,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,030.86 : 1,061,352.75 = 463,261.60 : x
  2. Step 2: Convert to fraction form
    769,030.86/1,061,352.75 = 463,261.60/x
  3. Step 3: Cross multiply
    769,030.86x = 1,061,352.75 × 463,261.60
  4. Step 4: Simplify right side
    769,030.86x = 491,683,970,223.21
  5. Step 5: Solve for x
    x = 491,683,970,223.21/769,030.86
  6. Step 6: Final answer
    x = 639,355.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.