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Finding the Fourth Proportional to 674,237.86, 930,445.41 and 372,431.86

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Solution

The fourth proportional to 674,237.86, 930,445.41 and 372,431.86 is: 513,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,237.86 : 930,445.41 = 372,431.86 : x
  2. Step 2: Convert to fraction form
    674,237.86/930,445.41 = 372,431.86/x
  3. Step 3: Cross multiply
    674,237.86x = 930,445.41 × 372,431.86
  4. Step 4: Simplify right side
    674,237.86x = 346,527,514,674.76
  5. Step 5: Solve for x
    x = 346,527,514,674.76/674,237.86
  6. Step 6: Final answer
    x = 513,954.40

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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.