Home / 602,769.20-905,190.60-426,513.20

Finding the Fourth Proportional to 602,769.20, 905,190.60 and 426,513.20

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Solution

The fourth proportional to 602,769.20, 905,190.60 and 426,513.20 is: 640,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,769.20 : 905,190.60 = 426,513.20 : x
  2. Step 2: Convert to fraction form
    602,769.20/905,190.60 = 426,513.20/x
  3. Step 3: Cross multiply
    602,769.20x = 905,190.60 × 426,513.20
  4. Step 4: Simplify right side
    602,769.20x = 386,075,739,415.92
  5. Step 5: Solve for x
    x = 386,075,739,415.92/602,769.20
  6. Step 6: Final answer
    x = 640,503.43

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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.