Home / 1,424,836.98-1,966,319.55-780,318.36

Finding the Fourth Proportional to 1,424,836.98, 1,966,319.55 and 780,318.36

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Solution

The fourth proportional to 1,424,836.98, 1,966,319.55 and 780,318.36 is: 1,076,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,836.98 : 1,966,319.55 = 780,318.36 : x
  2. Step 2: Convert to fraction form
    1,424,836.98/1,966,319.55 = 780,318.36/x
  3. Step 3: Cross multiply
    1,424,836.98x = 1,966,319.55 × 780,318.36
  4. Step 4: Simplify right side
    1,424,836.98x = 1,534,355,246,491.94
  5. Step 5: Solve for x
    x = 1,534,355,246,491.94/1,424,836.98
  6. Step 6: Final answer
    x = 1,076,863.72

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1.5x scale

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.