Home / 639,459.28-882,459.93-352,973.22

Finding the Fourth Proportional to 639,459.28, 882,459.93 and 352,973.22

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Solution

The fourth proportional to 639,459.28, 882,459.93 and 352,973.22 is: 487,106.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,459.28 : 882,459.93 = 352,973.22 : x
  2. Step 2: Convert to fraction form
    639,459.28/882,459.93 = 352,973.22/x
  3. Step 3: Cross multiply
    639,459.28x = 882,459.93 × 352,973.22
  4. Step 4: Simplify right side
    639,459.28x = 311,484,723,013.08
  5. Step 5: Solve for x
    x = 311,484,723,013.08/639,459.28
  6. Step 6: Final answer
    x = 487,106.42

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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.