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Finding the Fourth Proportional to 674,370.16, 930,653.40 and 372,580.72

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Solution

The fourth proportional to 674,370.16, 930,653.40 and 372,580.72 is: 514,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,370.16 : 930,653.40 = 372,580.72 : x
  2. Step 2: Convert to fraction form
    674,370.16/930,653.40 = 372,580.72/x
  3. Step 3: Cross multiply
    674,370.16x = 930,653.40 × 372,580.72
  4. Step 4: Simplify right side
    674,370.16x = 346,743,513,842.45
  5. Step 5: Solve for x
    x = 346,743,513,842.45/674,370.16
  6. Step 6: Final answer
    x = 514,173.87

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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.