Home / 1,412,735.28-1,949,561.15-768,155.70

Finding the Fourth Proportional to 1,412,735.28, 1,949,561.15 and 768,155.70

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Solution

The fourth proportional to 1,412,735.28, 1,949,561.15 and 768,155.70 is: 1,060,047.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,735.28 : 1,949,561.15 = 768,155.70 : x
  2. Step 2: Convert to fraction form
    1,412,735.28/1,949,561.15 = 768,155.70/x
  3. Step 3: Cross multiply
    1,412,735.28x = 1,949,561.15 × 768,155.70
  4. Step 4: Simplify right side
    1,412,735.28x = 1,497,566,506,030.28
  5. Step 5: Solve for x
    x = 1,497,566,506,030.28/1,412,735.28
  6. Step 6: Final answer
    x = 1,060,047.50

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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.