Home / 1,240,685.40-1,862,777.70-768,293.40

Finding the Fourth Proportional to 1,240,685.40, 1,862,777.70 and 768,293.40

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Solution

The fourth proportional to 1,240,685.40, 1,862,777.70 and 768,293.40 is: 1,153,523.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,685.40 : 1,862,777.70 = 768,293.40 : x
  2. Step 2: Convert to fraction form
    1,240,685.40/1,862,777.70 = 768,293.40/x
  3. Step 3: Cross multiply
    1,240,685.40x = 1,862,777.70 × 768,293.40
  4. Step 4: Simplify right side
    1,240,685.40x = 1,431,159,812,577.18
  5. Step 5: Solve for x
    x = 1,431,159,812,577.18/1,240,685.40
  6. Step 6: Final answer
    x = 1,153,523.54

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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.