Home / 1,878,376.40-2,812,587.96-990,046.16

Finding the Fourth Proportional to 1,878,376.40, 2,812,587.96 and 990,046.16

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Solution

The fourth proportional to 1,878,376.40, 2,812,587.96 and 990,046.16 is: 1,482,446.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,376.40 : 2,812,587.96 = 990,046.16 : x
  2. Step 2: Convert to fraction form
    1,878,376.40/2,812,587.96 = 990,046.16/x
  3. Step 3: Cross multiply
    1,878,376.40x = 2,812,587.96 × 990,046.16
  4. Step 4: Simplify right side
    1,878,376.40x = 2,784,591,909,460.23
  5. Step 5: Solve for x
    x = 2,784,591,909,460.23/1,878,376.40
  6. Step 6: Final answer
    x = 1,482,446.18

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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.