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Finding the Fourth Proportional to 702,690.66, 969,705.07 and 380,393.69

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Solution

The fourth proportional to 702,690.66, 969,705.07 and 380,393.69 is: 524,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,690.66 : 969,705.07 = 380,393.69 : x
  2. Step 2: Convert to fraction form
    702,690.66/969,705.07 = 380,393.69/x
  3. Step 3: Cross multiply
    702,690.66x = 969,705.07 × 380,393.69
  4. Step 4: Simplify right side
    702,690.66x = 368,869,683,989.50
  5. Step 5: Solve for x
    x = 368,869,683,989.50/702,690.66
  6. Step 6: Final answer
    x = 524,938.93

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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.