Home / 809,817.45-1,117,548.08-470,307.57

Finding the Fourth Proportional to 809,817.45, 1,117,548.08 and 470,307.57

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Solution

The fourth proportional to 809,817.45, 1,117,548.08 and 470,307.57 is: 649,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,817.45 : 1,117,548.08 = 470,307.57 : x
  2. Step 2: Convert to fraction form
    809,817.45/1,117,548.08 = 470,307.57/x
  3. Step 3: Cross multiply
    809,817.45x = 1,117,548.08 × 470,307.57
  4. Step 4: Simplify right side
    809,817.45x = 525,591,321,862.97
  5. Step 5: Solve for x
    x = 525,591,321,862.97/809,817.45
  6. Step 6: Final answer
    x = 649,024.45

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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.