Home / 698,697.80-1,048,046.70-486,121.40

Finding the Fourth Proportional to 698,697.80, 1,048,046.70 and 486,121.40

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Solution

The fourth proportional to 698,697.80, 1,048,046.70 and 486,121.40 is: 729,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,697.80 : 1,048,046.70 = 486,121.40 : x
  2. Step 2: Convert to fraction form
    698,697.80/1,048,046.70 = 486,121.40/x
  3. Step 3: Cross multiply
    698,697.80x = 1,048,046.70 × 486,121.40
  4. Step 4: Simplify right side
    698,697.80x = 509,477,929,069.38
  5. Step 5: Solve for x
    x = 509,477,929,069.38/698,697.80
  6. Step 6: Final answer
    x = 729,182.10

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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.