Home / 770,002.60-1,152,816.90-728,109.40

Finding the Fourth Proportional to 770,002.60, 1,152,816.90 and 728,109.40

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Solution

The fourth proportional to 770,002.60, 1,152,816.90 and 728,109.40 is: 1,090,096.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,002.60 : 1,152,816.90 = 728,109.40 : x
  2. Step 2: Convert to fraction form
    770,002.60/1,152,816.90 = 728,109.40/x
  3. Step 3: Cross multiply
    770,002.60x = 1,152,816.90 × 728,109.40
  4. Step 4: Simplify right side
    770,002.60x = 839,376,821,368.86
  5. Step 5: Solve for x
    x = 839,376,821,368.86/770,002.60
  6. Step 6: Final answer
    x = 1,090,096.09

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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.