Home / 840,739.10-1,261,108.65-693,116.60

Finding the Fourth Proportional to 840,739.10, 1,261,108.65 and 693,116.60

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Solution

The fourth proportional to 840,739.10, 1,261,108.65 and 693,116.60 is: 1,039,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,739.10 : 1,261,108.65 = 693,116.60 : x
  2. Step 2: Convert to fraction form
    840,739.10/1,261,108.65 = 693,116.60/x
  3. Step 3: Cross multiply
    840,739.10x = 1,261,108.65 × 693,116.60
  4. Step 4: Simplify right side
    840,739.10x = 874,095,339,718.59
  5. Step 5: Solve for x
    x = 874,095,339,718.59/840,739.10
  6. Step 6: Final answer
    x = 1,039,674.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.