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Finding the Fourth Proportional to 670,577.30, 925,326.69 and 384,109.46

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Solution

The fourth proportional to 670,577.30, 925,326.69 and 384,109.46 is: 530,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,577.30 : 925,326.69 = 384,109.46 : x
  2. Step 2: Convert to fraction form
    670,577.30/925,326.69 = 384,109.46/x
  3. Step 3: Cross multiply
    670,577.30x = 925,326.69 × 384,109.46
  4. Step 4: Simplify right side
    670,577.30x = 355,426,735,219.49
  5. Step 5: Solve for x
    x = 355,426,735,219.49/670,577.30
  6. Step 6: Final answer
    x = 530,030.97

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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.