Home / 1,403,937-2,105,412.82-392,787.28

Finding the Fourth Proportional to 1,403,937, 2,105,412.82 and 392,787.28

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Solution

The fourth proportional to 1,403,937, 2,105,412.82 and 392,787.28 is: 589,043.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,937 : 2,105,412.82 = 392,787.28 : x
  2. Step 2: Convert to fraction form
    1,403,937/2,105,412.82 = 392,787.28/x
  3. Step 3: Cross multiply
    1,403,937x = 2,105,412.82 × 392,787.28
  4. Step 4: Simplify right side
    1,403,937x = 826,979,374,844.93
  5. Step 5: Solve for x
    x = 826,979,374,844.93/1,403,937
  6. Step 6: Final answer
    x = 589,043.08

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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.