Home / 839,451.74-1,158,409.61-457,470.32

Finding the Fourth Proportional to 839,451.74, 1,158,409.61 and 457,470.32

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Solution

The fourth proportional to 839,451.74, 1,158,409.61 and 457,470.32 is: 631,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,451.74 : 1,158,409.61 = 457,470.32 : x
  2. Step 2: Convert to fraction form
    839,451.74/1,158,409.61 = 457,470.32/x
  3. Step 3: Cross multiply
    839,451.74x = 1,158,409.61 × 457,470.32
  4. Step 4: Simplify right side
    839,451.74x = 529,938,015,586.45
  5. Step 5: Solve for x
    x = 529,938,015,586.45/839,451.74
  6. Step 6: Final answer
    x = 631,290.63

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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.