Home / 926,376.72-1,389,697.89-286,736.63

Finding the Fourth Proportional to 926,376.72, 1,389,697.89 and 286,736.63

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Solution

The fourth proportional to 926,376.72, 1,389,697.89 and 286,736.63 is: 430,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,376.72 : 1,389,697.89 = 286,736.63 : x
  2. Step 2: Convert to fraction form
    926,376.72/1,389,697.89 = 286,736.63/x
  3. Step 3: Cross multiply
    926,376.72x = 1,389,697.89 × 286,736.63
  4. Step 4: Simplify right side
    926,376.72x = 398,477,285,891.54
  5. Step 5: Solve for x
    x = 398,477,285,891.54/926,376.72
  6. Step 6: Final answer
    x = 430,146.05

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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.