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Finding the Fourth Proportional to 674,487.06, 930,780.90 and 368,556.72

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Solution

The fourth proportional to 674,487.06, 930,780.90 and 368,556.72 is: 508,602.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,487.06 : 930,780.90 = 368,556.72 : x
  2. Step 2: Convert to fraction form
    674,487.06/930,780.90 = 368,556.72/x
  3. Step 3: Cross multiply
    674,487.06x = 930,780.90 × 368,556.72
  4. Step 4: Simplify right side
    674,487.06x = 343,045,555,542.65
  5. Step 5: Solve for x
    x = 343,045,555,542.65/674,487.06
  6. Step 6: Final answer
    x = 508,602.13

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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.