Home / 698,368.38-1,048,285.55-618,914.67

Finding the Fourth Proportional to 698,368.38, 1,048,285.55 and 618,914.67

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Solution

The fourth proportional to 698,368.38, 1,048,285.55 and 618,914.67 is: 929,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,368.38 : 1,048,285.55 = 618,914.67 : x
  2. Step 2: Convert to fraction form
    698,368.38/1,048,285.55 = 618,914.67/x
  3. Step 3: Cross multiply
    698,368.38x = 1,048,285.55 × 618,914.67
  4. Step 4: Simplify right side
    698,368.38x = 648,799,305,275.45
  5. Step 5: Solve for x
    x = 648,799,305,275.45/698,368.38
  6. Step 6: Final answer
    x = 929,021.59

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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.