Home / 859,336.40-1,289,004.60-486,088.40

Finding the Fourth Proportional to 859,336.40, 1,289,004.60 and 486,088.40

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Solution

The fourth proportional to 859,336.40, 1,289,004.60 and 486,088.40 is: 729,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,336.40 : 1,289,004.60 = 486,088.40 : x
  2. Step 2: Convert to fraction form
    859,336.40/1,289,004.60 = 486,088.40/x
  3. Step 3: Cross multiply
    859,336.40x = 1,289,004.60 × 486,088.40
  4. Step 4: Simplify right side
    859,336.40x = 626,570,183,606.64
  5. Step 5: Solve for x
    x = 626,570,183,606.64/859,336.40
  6. Step 6: Final answer
    x = 729,132.60

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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.