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Finding the Fourth Proportional to 623,955.50, 860,984.54 and 352,007.52

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Solution

The fourth proportional to 623,955.50, 860,984.54 and 352,007.52 is: 485,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,955.50 : 860,984.54 = 352,007.52 : x
  2. Step 2: Convert to fraction form
    623,955.50/860,984.54 = 352,007.52/x
  3. Step 3: Cross multiply
    623,955.50x = 860,984.54 × 352,007.52
  4. Step 4: Simplify right side
    623,955.50x = 303,073,033,858.08
  5. Step 5: Solve for x
    x = 303,073,033,858.08/623,955.50
  6. Step 6: Final answer
    x = 485,728.60

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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.