Home / 628,964.50-947,647.91-569,069.75

Finding the Fourth Proportional to 628,964.50, 947,647.91 and 569,069.75

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Solution

The fourth proportional to 628,964.50, 947,647.91 and 569,069.75 is: 857,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,964.50 : 947,647.91 = 569,069.75 : x
  2. Step 2: Convert to fraction form
    628,964.50/947,647.91 = 569,069.75/x
  3. Step 3: Cross multiply
    628,964.50x = 947,647.91 × 569,069.75
  4. Step 4: Simplify right side
    628,964.50x = 539,277,759,822.50
  5. Step 5: Solve for x
    x = 539,277,759,822.50/628,964.50
  6. Step 6: Final answer
    x = 857,405.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.