Home / 639,492.18-882,501.33-353,011.59

Finding the Fourth Proportional to 639,492.18, 882,501.33 and 353,011.59

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Solution

The fourth proportional to 639,492.18, 882,501.33 and 353,011.59 is: 487,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,492.18 : 882,501.33 = 353,011.59 : x
  2. Step 2: Convert to fraction form
    639,492.18/882,501.33 = 353,011.59/x
  3. Step 3: Cross multiply
    639,492.18x = 882,501.33 × 353,011.59
  4. Step 4: Simplify right side
    639,492.18x = 311,533,197,680.42
  5. Step 5: Solve for x
    x = 311,533,197,680.42/639,492.18
  6. Step 6: Final answer
    x = 487,157.17

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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.