Home / 698,913.87-1,047,603.69-398,739.84

Finding the Fourth Proportional to 698,913.87, 1,047,603.69 and 398,739.84

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Solution

The fourth proportional to 698,913.87, 1,047,603.69 and 398,739.84 is: 597,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,913.87 : 1,047,603.69 = 398,739.84 : x
  2. Step 2: Convert to fraction form
    698,913.87/1,047,603.69 = 398,739.84/x
  3. Step 3: Cross multiply
    698,913.87x = 1,047,603.69 × 398,739.84
  4. Step 4: Simplify right side
    698,913.87x = 417,721,327,734.01
  5. Step 5: Solve for x
    x = 417,721,327,734.01/698,913.87
  6. Step 6: Final answer
    x = 597,672.11

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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.