Home / 1,420,228.55-2,130,341.89-355,269.80

Finding the Fourth Proportional to 1,420,228.55, 2,130,341.89 and 355,269.80

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Solution

The fourth proportional to 1,420,228.55, 2,130,341.89 and 355,269.80 is: 532,904.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,228.55 : 2,130,341.89 = 355,269.80 : x
  2. Step 2: Convert to fraction form
    1,420,228.55/2,130,341.89 = 355,269.80/x
  3. Step 3: Cross multiply
    1,420,228.55x = 2,130,341.89 × 355,269.80
  4. Step 4: Simplify right side
    1,420,228.55x = 756,846,137,191.92
  5. Step 5: Solve for x
    x = 756,846,137,191.92/1,420,228.55
  6. Step 6: Final answer
    x = 532,904.47

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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.