Home / 1,678,587.40-2,518,625.26-879,679

Finding the Fourth Proportional to 1,678,587.40, 2,518,625.26 and 879,679

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Solution

The fourth proportional to 1,678,587.40, 2,518,625.26 and 879,679 is: 1,319,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,587.40 : 2,518,625.26 = 879,679 : x
  2. Step 2: Convert to fraction form
    1,678,587.40/2,518,625.26 = 879,679/x
  3. Step 3: Cross multiply
    1,678,587.40x = 2,518,625.26 × 879,679
  4. Step 4: Simplify right side
    1,678,587.40x = 2,215,581,750,091.54
  5. Step 5: Solve for x
    x = 2,215,581,750,091.54/1,678,587.40
  6. Step 6: Final answer
    x = 1,319,908.48

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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.