Home / 2,870,561.60-4,305,842.40-1,918,779.20

Finding the Fourth Proportional to 2,870,561.60, 4,305,842.40 and 1,918,779.20

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Solution

The fourth proportional to 2,870,561.60, 4,305,842.40 and 1,918,779.20 is: 2,878,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870,561.60 : 4,305,842.40 = 1,918,779.20 : x
  2. Step 2: Convert to fraction form
    2,870,561.60/4,305,842.40 = 1,918,779.20/x
  3. Step 3: Cross multiply
    2,870,561.60x = 4,305,842.40 × 1,918,779.20
  4. Step 4: Simplify right side
    2,870,561.60x = 8,261,960,835,598.08
  5. Step 5: Solve for x
    x = 8,261,960,835,598.08/2,870,561.60
  6. Step 6: Final answer
    x = 2,878,168.80

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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.