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Finding the Fourth Proportional to 1,673,655, 2,309,646.60 and 909,706.74

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Solution

The fourth proportional to 1,673,655, 2,309,646.60 and 909,706.74 is: 1,255,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673,655 : 2,309,646.60 = 909,706.74 : x
  2. Step 2: Convert to fraction form
    1,673,655/2,309,646.60 = 909,706.74/x
  3. Step 3: Cross multiply
    1,673,655x = 2,309,646.60 × 909,706.74
  4. Step 4: Simplify right side
    1,673,655x = 2,101,101,079,038.08
  5. Step 5: Solve for x
    x = 2,101,101,079,038.08/1,673,655
  6. Step 6: Final answer
    x = 1,255,396.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.