Home / 1,689,356.07-2,534,013.74-678,459.87

Finding the Fourth Proportional to 1,689,356.07, 2,534,013.74 and 678,459.87

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Solution

The fourth proportional to 1,689,356.07, 2,534,013.74 and 678,459.87 is: 1,017,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,356.07 : 2,534,013.74 = 678,459.87 : x
  2. Step 2: Convert to fraction form
    1,689,356.07/2,534,013.74 = 678,459.87/x
  3. Step 3: Cross multiply
    1,689,356.07x = 2,534,013.74 × 678,459.87
  4. Step 4: Simplify right side
    1,689,356.07x = 1,719,226,629,226.31
  5. Step 5: Solve for x
    x = 1,719,226,629,226.31/1,689,356.07
  6. Step 6: Final answer
    x = 1,017,681.62

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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.