Home / 830,014.20-1,243,271.70-690,046.20

Finding the Fourth Proportional to 830,014.20, 1,243,271.70 and 690,046.20

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Solution

The fourth proportional to 830,014.20, 1,243,271.70 and 690,046.20 is: 1,033,614.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,014.20 : 1,243,271.70 = 690,046.20 : x
  2. Step 2: Convert to fraction form
    830,014.20/1,243,271.70 = 690,046.20/x
  3. Step 3: Cross multiply
    830,014.20x = 1,243,271.70 × 690,046.20
  4. Step 4: Simplify right side
    830,014.20x = 857,914,912,152.54
  5. Step 5: Solve for x
    x = 857,914,912,152.54/830,014.20
  6. Step 6: Final answer
    x = 1,033,614.74

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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.