Home / 1,315,272.61-1,813,434.55-1,005,559.01

Finding the Fourth Proportional to 1,315,272.61, 1,813,434.55 and 1,005,559.01

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Solution

The fourth proportional to 1,315,272.61, 1,813,434.55 and 1,005,559.01 is: 1,386,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,272.61 : 1,813,434.55 = 1,005,559.01 : x
  2. Step 2: Convert to fraction form
    1,315,272.61/1,813,434.55 = 1,005,559.01/x
  3. Step 3: Cross multiply
    1,315,272.61x = 1,813,434.55 × 1,005,559.01
  4. Step 4: Simplify right side
    1,315,272.61x = 1,823,515,450,797.80
  5. Step 5: Solve for x
    x = 1,823,515,450,797.80/1,315,272.61
  6. Step 6: Final answer
    x = 1,386,416.35

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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.