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Finding the Fourth Proportional to 1,297,742.07, 1,946,612.70 and 945,000.84

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Solution

The fourth proportional to 1,297,742.07, 1,946,612.70 and 945,000.84 is: 1,417,500.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,742.07 : 1,946,612.70 = 945,000.84 : x
  2. Step 2: Convert to fraction form
    1,297,742.07/1,946,612.70 = 945,000.84/x
  3. Step 3: Cross multiply
    1,297,742.07x = 1,946,612.70 × 945,000.84
  4. Step 4: Simplify right side
    1,297,742.07x = 1,839,550,636,654.67
  5. Step 5: Solve for x
    x = 1,839,550,636,654.67/1,297,742.07
  6. Step 6: Final answer
    x = 1,417,500.97

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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.