Home / 1,217,285.70-1,679,552.46-787,048.13

Finding the Fourth Proportional to 1,217,285.70, 1,679,552.46 and 787,048.13

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Solution

The fourth proportional to 1,217,285.70, 1,679,552.46 and 787,048.13 is: 1,085,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,285.70 : 1,679,552.46 = 787,048.13 : x
  2. Step 2: Convert to fraction form
    1,217,285.70/1,679,552.46 = 787,048.13/x
  3. Step 3: Cross multiply
    1,217,285.70x = 1,679,552.46 × 787,048.13
  4. Step 4: Simplify right side
    1,217,285.70x = 1,321,888,614,482.14
  5. Step 5: Solve for x
    x = 1,321,888,614,482.14/1,217,285.70
  6. Step 6: Final answer
    x = 1,085,931.28

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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.