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Finding the Fourth Proportional to 679,685.76, 937,951.08 and 369,581.66

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Solution

The fourth proportional to 679,685.76, 937,951.08 and 369,581.66 is: 510,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,685.76 : 937,951.08 = 369,581.66 : x
  2. Step 2: Convert to fraction form
    679,685.76/937,951.08 = 369,581.66/x
  3. Step 3: Cross multiply
    679,685.76x = 937,951.08 × 369,581.66
  4. Step 4: Simplify right side
    679,685.76x = 346,649,517,145.19
  5. Step 5: Solve for x
    x = 346,649,517,145.19/679,685.76
  6. Step 6: Final answer
    x = 510,014.39

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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.