Home / 788,690.78-1,088,393.74-426,114.54

Finding the Fourth Proportional to 788,690.78, 1,088,393.74 and 426,114.54

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Solution

The fourth proportional to 788,690.78, 1,088,393.74 and 426,114.54 is: 588,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,690.78 : 1,088,393.74 = 426,114.54 : x
  2. Step 2: Convert to fraction form
    788,690.78/1,088,393.74 = 426,114.54/x
  3. Step 3: Cross multiply
    788,690.78x = 1,088,393.74 × 426,114.54
  4. Step 4: Simplify right side
    788,690.78x = 463,780,397,858.98
  5. Step 5: Solve for x
    x = 463,780,397,858.98/788,690.78
  6. Step 6: Final answer
    x = 588,038.32

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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.