Home / 1,313,762.59-1,813,046.16-830,151.28

Finding the Fourth Proportional to 1,313,762.59, 1,813,046.16 and 830,151.28

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Solution

The fourth proportional to 1,313,762.59, 1,813,046.16 and 830,151.28 is: 1,145,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,762.59 : 1,813,046.16 = 830,151.28 : x
  2. Step 2: Convert to fraction form
    1,313,762.59/1,813,046.16 = 830,151.28/x
  3. Step 3: Cross multiply
    1,313,762.59x = 1,813,046.16 × 830,151.28
  4. Step 4: Simplify right side
    1,313,762.59x = 1,505,102,590,423.08
  5. Step 5: Solve for x
    x = 1,505,102,590,423.08/1,313,762.59
  6. Step 6: Final answer
    x = 1,145,642.75

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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.