Home / 1,925,720.80-2,886,248.40-859,631.20

Finding the Fourth Proportional to 1,925,720.80, 2,886,248.40 and 859,631.20

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Solution

The fourth proportional to 1,925,720.80, 2,886,248.40 and 859,631.20 is: 1,288,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925,720.80 : 2,886,248.40 = 859,631.20 : x
  2. Step 2: Convert to fraction form
    1,925,720.80/2,886,248.40 = 859,631.20/x
  3. Step 3: Cross multiply
    1,925,720.80x = 2,886,248.40 × 859,631.20
  4. Step 4: Simplify right side
    1,925,720.80x = 2,481,109,175,590.08
  5. Step 5: Solve for x
    x = 2,481,109,175,590.08/1,925,720.80
  6. Step 6: Final answer
    x = 1,288,405.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.