Home / 1,500,222.10-2,070,289.65-821,150.50

Finding the Fourth Proportional to 1,500,222.10, 2,070,289.65 and 821,150.50

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Solution

The fourth proportional to 1,500,222.10, 2,070,289.65 and 821,150.50 is: 1,133,178.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,222.10 : 2,070,289.65 = 821,150.50 : x
  2. Step 2: Convert to fraction form
    1,500,222.10/2,070,289.65 = 821,150.50/x
  3. Step 3: Cross multiply
    1,500,222.10x = 2,070,289.65 × 821,150.50
  4. Step 4: Simplify right side
    1,500,222.10x = 1,700,019,381,242.33
  5. Step 5: Solve for x
    x = 1,700,019,381,242.33/1,500,222.10
  6. Step 6: Final answer
    x = 1,133,178.47

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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.