Home / 1,357,731.89-1,873,461.72-784,661.39

Finding the Fourth Proportional to 1,357,731.89, 1,873,461.72 and 784,661.39

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Solution

The fourth proportional to 1,357,731.89, 1,873,461.72 and 784,661.39 is: 1,082,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,731.89 : 1,873,461.72 = 784,661.39 : x
  2. Step 2: Convert to fraction form
    1,357,731.89/1,873,461.72 = 784,661.39/x
  3. Step 3: Cross multiply
    1,357,731.89x = 1,873,461.72 × 784,661.39
  4. Step 4: Simplify right side
    1,357,731.89x = 1,470,033,064,036.38
  5. Step 5: Solve for x
    x = 1,470,033,064,036.38/1,357,731.89
  6. Step 6: Final answer
    x = 1,082,712.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.