Home / 682,690.50-1,023,718.98-398,462.86

Finding the Fourth Proportional to 682,690.50, 1,023,718.98 and 398,462.86

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Solution

The fourth proportional to 682,690.50, 1,023,718.98 and 398,462.86 is: 597,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,690.50 : 1,023,718.98 = 398,462.86 : x
  2. Step 2: Convert to fraction form
    682,690.50/1,023,718.98 = 398,462.86/x
  3. Step 3: Cross multiply
    682,690.50x = 1,023,718.98 × 398,462.86
  4. Step 4: Simplify right side
    682,690.50x = 407,913,989,941.48
  5. Step 5: Solve for x
    x = 407,913,989,941.48/682,690.50
  6. Step 6: Final answer
    x = 597,509.40

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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.