Home / 1,557,195.30-2,148,522.84-912,268.80

Finding the Fourth Proportional to 1,557,195.30, 2,148,522.84 and 912,268.80

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Solution

The fourth proportional to 1,557,195.30, 2,148,522.84 and 912,268.80 is: 1,258,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,195.30 : 2,148,522.84 = 912,268.80 : x
  2. Step 2: Convert to fraction form
    1,557,195.30/2,148,522.84 = 912,268.80/x
  3. Step 3: Cross multiply
    1,557,195.30x = 2,148,522.84 × 912,268.80
  4. Step 4: Simplify right side
    1,557,195.30x = 1,960,030,353,019.39
  5. Step 5: Solve for x
    x = 1,960,030,353,019.39/1,557,195.30
  6. Step 6: Final answer
    x = 1,258,692.70

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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.