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Finding the Fourth Proportional to 702,804.96, 969,869.55 and 380,515

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Solution

The fourth proportional to 702,804.96, 969,869.55 and 380,515 is: 525,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,804.96 : 969,869.55 = 380,515 : x
  2. Step 2: Convert to fraction form
    702,804.96/969,869.55 = 380,515/x
  3. Step 3: Cross multiply
    702,804.96x = 969,869.55 × 380,515
  4. Step 4: Simplify right side
    702,804.96x = 369,049,911,818.25
  5. Step 5: Solve for x
    x = 369,049,911,818.25/702,804.96
  6. Step 6: Final answer
    x = 525,110.00

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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.