Home / 705,424.41-973,764.86-490,689.09

Finding the Fourth Proportional to 705,424.41, 973,764.86 and 490,689.09

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Solution

The fourth proportional to 705,424.41, 973,764.86 and 490,689.09 is: 677,345.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,424.41 : 973,764.86 = 490,689.09 : x
  2. Step 2: Convert to fraction form
    705,424.41/973,764.86 = 490,689.09/x
  3. Step 3: Cross multiply
    705,424.41x = 973,764.86 × 490,689.09
  4. Step 4: Simplify right side
    705,424.41x = 477,815,790,573.93
  5. Step 5: Solve for x
    x = 477,815,790,573.93/705,424.41
  6. Step 6: Final answer
    x = 677,345.13

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1.5x scale

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.