Home / 1,000,155.50-1,380,223.19-570,457.38

Finding the Fourth Proportional to 1,000,155.50, 1,380,223.19 and 570,457.38

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Solution

The fourth proportional to 1,000,155.50, 1,380,223.19 and 570,457.38 is: 787,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,155.50 : 1,380,223.19 = 570,457.38 : x
  2. Step 2: Convert to fraction form
    1,000,155.50/1,380,223.19 = 570,457.38/x
  3. Step 3: Cross multiply
    1,000,155.50x = 1,380,223.19 × 570,457.38
  4. Step 4: Simplify right side
    1,000,155.50x = 787,358,504,782.64
  5. Step 5: Solve for x
    x = 787,358,504,782.64/1,000,155.50
  6. Step 6: Final answer
    x = 787,236.09

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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.