Home / 1,261,269.42-1,740,551.33-688,309.59

Finding the Fourth Proportional to 1,261,269.42, 1,740,551.33 and 688,309.59

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Solution

The fourth proportional to 1,261,269.42, 1,740,551.33 and 688,309.59 is: 949,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,269.42 : 1,740,551.33 = 688,309.59 : x
  2. Step 2: Convert to fraction form
    1,261,269.42/1,740,551.33 = 688,309.59/x
  3. Step 3: Cross multiply
    1,261,269.42x = 1,740,551.33 × 688,309.59
  4. Step 4: Simplify right side
    1,261,269.42x = 1,198,038,168,884.71
  5. Step 5: Solve for x
    x = 1,198,038,168,884.71/1,261,269.42
  6. Step 6: Final answer
    x = 949,866.98

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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.