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Finding the Fourth Proportional to 674,236.86, 930,444.03 and 372,430.86

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Solution

The fourth proportional to 674,236.86, 930,444.03 and 372,430.86 is: 513,953.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,236.86 : 930,444.03 = 372,430.86 : x
  2. Step 2: Convert to fraction form
    674,236.86/930,444.03 = 372,430.86/x
  3. Step 3: Cross multiply
    674,236.86x = 930,444.03 × 372,430.86
  4. Step 4: Simplify right side
    674,236.86x = 346,526,070,274.77
  5. Step 5: Solve for x
    x = 346,526,070,274.77/674,236.86
  6. Step 6: Final answer
    x = 513,953.02

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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.