Home / 1,820,133.70-2,730,200.55-621,876.40

Finding the Fourth Proportional to 1,820,133.70, 2,730,200.55 and 621,876.40

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Solution

The fourth proportional to 1,820,133.70, 2,730,200.55 and 621,876.40 is: 932,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,133.70 : 2,730,200.55 = 621,876.40 : x
  2. Step 2: Convert to fraction form
    1,820,133.70/2,730,200.55 = 621,876.40/x
  3. Step 3: Cross multiply
    1,820,133.70x = 2,730,200.55 × 621,876.40
  4. Step 4: Simplify right side
    1,820,133.70x = 1,697,847,289,312.02
  5. Step 5: Solve for x
    x = 1,697,847,289,312.02/1,820,133.70
  6. Step 6: Final answer
    x = 932,814.60

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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.