Home / 920,059.80-1,380,089.70-668,117.40

Finding the Fourth Proportional to 920,059.80, 1,380,089.70 and 668,117.40

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Solution

The fourth proportional to 920,059.80, 1,380,089.70 and 668,117.40 is: 1,002,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,059.80 : 1,380,089.70 = 668,117.40 : x
  2. Step 2: Convert to fraction form
    920,059.80/1,380,089.70 = 668,117.40/x
  3. Step 3: Cross multiply
    920,059.80x = 1,380,089.70 × 668,117.40
  4. Step 4: Simplify right side
    920,059.80x = 922,061,942,130.78
  5. Step 5: Solve for x
    x = 922,061,942,130.78/920,059.80
  6. Step 6: Final answer
    x = 1,002,176.10

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Similar ratio
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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.