Home / 698,656.69-1,047,718.90-458,706.34

Finding the Fourth Proportional to 698,656.69, 1,047,718.90 and 458,706.34

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Solution

The fourth proportional to 698,656.69, 1,047,718.90 and 458,706.34 is: 687,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,656.69 : 1,047,718.90 = 458,706.34 : x
  2. Step 2: Convert to fraction form
    698,656.69/1,047,718.90 = 458,706.34/x
  3. Step 3: Cross multiply
    698,656.69x = 1,047,718.90 × 458,706.34
  4. Step 4: Simplify right side
    698,656.69x = 480,595,303,850.86
  5. Step 5: Solve for x
    x = 480,595,303,850.86/698,656.69
  6. Step 6: Final answer
    x = 687,884.78

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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.