Home / 1,310,133.27-1,808,693.59-918,867.81

Finding the Fourth Proportional to 1,310,133.27, 1,808,693.59 and 918,867.81

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Solution

The fourth proportional to 1,310,133.27, 1,808,693.59 and 918,867.81 is: 1,268,535.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,133.27 : 1,808,693.59 = 918,867.81 : x
  2. Step 2: Convert to fraction form
    1,310,133.27/1,808,693.59 = 918,867.81/x
  3. Step 3: Cross multiply
    1,310,133.27x = 1,808,693.59 × 918,867.81
  4. Step 4: Simplify right side
    1,310,133.27x = 1,661,950,318,004.34
  5. Step 5: Solve for x
    x = 1,661,950,318,004.34/1,310,133.27
  6. Step 6: Final answer
    x = 1,268,535.31

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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.