Home / 1,387,334.93-2,081,002.40-390,062.93

Finding the Fourth Proportional to 1,387,334.93, 2,081,002.40 and 390,062.93

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Solution

The fourth proportional to 1,387,334.93, 2,081,002.40 and 390,062.93 is: 585,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,334.93 : 2,081,002.40 = 390,062.93 : x
  2. Step 2: Convert to fraction form
    1,387,334.93/2,081,002.40 = 390,062.93/x
  3. Step 3: Cross multiply
    1,387,334.93x = 2,081,002.40 × 390,062.93
  4. Step 4: Simplify right side
    1,387,334.93x = 811,721,893,481.03
  5. Step 5: Solve for x
    x = 811,721,893,481.03/1,387,334.93
  6. Step 6: Final answer
    x = 585,094.40

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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.