Home / 698,690.20-1,047,344.10-343,413.40

Finding the Fourth Proportional to 698,690.20, 1,047,344.10 and 343,413.40

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Solution

The fourth proportional to 698,690.20, 1,047,344.10 and 343,413.40 is: 514,780.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,690.20 : 1,047,344.10 = 343,413.40 : x
  2. Step 2: Convert to fraction form
    698,690.20/1,047,344.10 = 343,413.40/x
  3. Step 3: Cross multiply
    698,690.20x = 1,047,344.10 × 343,413.40
  4. Step 4: Simplify right side
    698,690.20x = 359,671,998,350.94
  5. Step 5: Solve for x
    x = 359,671,998,350.94/698,690.20
  6. Step 6: Final answer
    x = 514,780.37

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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.