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Finding the Fourth Proportional to 674,326.79, 928,676.52 and 659,630.15

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Solution

The fourth proportional to 674,326.79, 928,676.52 and 659,630.15 is: 908,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,326.79 : 928,676.52 = 659,630.15 : x
  2. Step 2: Convert to fraction form
    674,326.79/928,676.52 = 659,630.15/x
  3. Step 3: Cross multiply
    674,326.79x = 928,676.52 × 659,630.15
  4. Step 4: Simplify right side
    674,326.79x = 612,583,032,189.08
  5. Step 5: Solve for x
    x = 612,583,032,189.08/674,326.79
  6. Step 6: Final answer
    x = 908,436.45

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1.5x scale

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.