Home / 1,019,854.48-1,407,147.24-637,690

Finding the Fourth Proportional to 1,019,854.48, 1,407,147.24 and 637,690

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Solution

The fourth proportional to 1,019,854.48, 1,407,147.24 and 637,690 is: 879,854.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,854.48 : 1,407,147.24 = 637,690 : x
  2. Step 2: Convert to fraction form
    1,019,854.48/1,407,147.24 = 637,690/x
  3. Step 3: Cross multiply
    1,019,854.48x = 1,407,147.24 × 637,690
  4. Step 4: Simplify right side
    1,019,854.48x = 897,323,723,475.60
  5. Step 5: Solve for x
    x = 897,323,723,475.60/1,019,854.48
  6. Step 6: Final answer
    x = 879,854.67

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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.