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Finding the Fourth Proportional to 877,804, 1,211,369.60 and 475,396

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Solution

The fourth proportional to 877,804, 1,211,369.60 and 475,396 is: 656,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,804 : 1,211,369.60 = 475,396 : x
  2. Step 2: Convert to fraction form
    877,804/1,211,369.60 = 475,396/x
  3. Step 3: Cross multiply
    877,804x = 1,211,369.60 × 475,396
  4. Step 4: Simplify right side
    877,804x = 575,880,262,361.60
  5. Step 5: Solve for x
    x = 575,880,262,361.60/877,804
  6. Step 6: Final answer
    x = 656,046.52

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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.