Home / 809,853.75-1,117,598.28-470,343.87

Finding the Fourth Proportional to 809,853.75, 1,117,598.28 and 470,343.87

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Solution

The fourth proportional to 809,853.75, 1,117,598.28 and 470,343.87 is: 649,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,853.75 : 1,117,598.28 = 470,343.87 : x
  2. Step 2: Convert to fraction form
    809,853.75/1,117,598.28 = 470,343.87/x
  3. Step 3: Cross multiply
    809,853.75x = 1,117,598.28 × 470,343.87
  4. Step 4: Simplify right side
    809,853.75x = 525,655,500,120.54
  5. Step 5: Solve for x
    x = 525,655,500,120.54/809,853.75
  6. Step 6: Final answer
    x = 649,074.60

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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.