Home / 671,048.82-925,742.25-398,962.35

Finding the Fourth Proportional to 671,048.82, 925,742.25 and 398,962.35

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Solution

The fourth proportional to 671,048.82, 925,742.25 and 398,962.35 is: 550,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,048.82 : 925,742.25 = 398,962.35 : x
  2. Step 2: Convert to fraction form
    671,048.82/925,742.25 = 398,962.35/x
  3. Step 3: Cross multiply
    671,048.82x = 925,742.25 × 398,962.35
  4. Step 4: Simplify right side
    671,048.82x = 369,336,303,554.29
  5. Step 5: Solve for x
    x = 369,336,303,554.29/671,048.82
  6. Step 6: Final answer
    x = 550,386.64

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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.