Home / 800,025.80-1,200,038.70-712,934.60

Finding the Fourth Proportional to 800,025.80, 1,200,038.70 and 712,934.60

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Solution

The fourth proportional to 800,025.80, 1,200,038.70 and 712,934.60 is: 1,069,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,025.80 : 1,200,038.70 = 712,934.60 : x
  2. Step 2: Convert to fraction form
    800,025.80/1,200,038.70 = 712,934.60/x
  3. Step 3: Cross multiply
    800,025.80x = 1,200,038.70 × 712,934.60
  4. Step 4: Simplify right side
    800,025.80x = 855,549,110,569.02
  5. Step 5: Solve for x
    x = 855,549,110,569.02/800,025.80
  6. Step 6: Final answer
    x = 1,069,401.90

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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.