Home / 426,941.44-589,072.80-243,138.40

Finding the Fourth Proportional to 426,941.44, 589,072.80 and 243,138.40

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Solution

The fourth proportional to 426,941.44, 589,072.80 and 243,138.40 is: 335,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,941.44 : 589,072.80 = 243,138.40 : x
  2. Step 2: Convert to fraction form
    426,941.44/589,072.80 = 243,138.40/x
  3. Step 3: Cross multiply
    426,941.44x = 589,072.80 × 243,138.40
  4. Step 4: Simplify right side
    426,941.44x = 143,226,218,075.52
  5. Step 5: Solve for x
    x = 143,226,218,075.52/426,941.44
  6. Step 6: Final answer
    x = 335,470.41

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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.