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Finding the Fourth Proportional to 599,529.72, 899,031.06 and 318,980.28

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Solution

The fourth proportional to 599,529.72, 899,031.06 and 318,980.28 is: 478,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,529.72 : 899,031.06 = 318,980.28 : x
  2. Step 2: Convert to fraction form
    599,529.72/899,031.06 = 318,980.28/x
  3. Step 3: Cross multiply
    599,529.72x = 899,031.06 × 318,980.28
  4. Step 4: Simplify right side
    599,529.72x = 286,773,179,247.50
  5. Step 5: Solve for x
    x = 286,773,179,247.50/599,529.72
  6. Step 6: Final answer
    x = 478,330.21

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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.