Home / 698,912.57-1,048,109.27-243,386.83

Finding the Fourth Proportional to 698,912.57, 1,048,109.27 and 243,386.83

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Solution

The fourth proportional to 698,912.57, 1,048,109.27 and 243,386.83 is: 364,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,912.57 : 1,048,109.27 = 243,386.83 : x
  2. Step 2: Convert to fraction form
    698,912.57/1,048,109.27 = 243,386.83/x
  3. Step 3: Cross multiply
    698,912.57x = 1,048,109.27 × 243,386.83
  4. Step 4: Simplify right side
    698,912.57x = 255,095,988,285.55
  5. Step 5: Solve for x
    x = 255,095,988,285.55/698,912.57
  6. Step 6: Final answer
    x = 364,989.84

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1.5x scale

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.