Home / 770,512.40-1,155,768.60-491,267.60

Finding the Fourth Proportional to 770,512.40, 1,155,768.60 and 491,267.60

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Solution

The fourth proportional to 770,512.40, 1,155,768.60 and 491,267.60 is: 736,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,512.40 : 1,155,768.60 = 491,267.60 : x
  2. Step 2: Convert to fraction form
    770,512.40/1,155,768.60 = 491,267.60/x
  3. Step 3: Cross multiply
    770,512.40x = 1,155,768.60 × 491,267.60
  4. Step 4: Simplify right side
    770,512.40x = 567,791,666,277.36
  5. Step 5: Solve for x
    x = 567,791,666,277.36/770,512.40
  6. Step 6: Final answer
    x = 736,901.40

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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.