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Finding the Fourth Proportional to 514,835.36, 710,818.80 and 321,536.96

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Solution

The fourth proportional to 514,835.36, 710,818.80 and 321,536.96 is: 443,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,835.36 : 710,818.80 = 321,536.96 : x
  2. Step 2: Convert to fraction form
    514,835.36/710,818.80 = 321,536.96/x
  3. Step 3: Cross multiply
    514,835.36x = 710,818.80 × 321,536.96
  4. Step 4: Simplify right side
    514,835.36x = 228,554,516,062.85
  5. Step 5: Solve for x
    x = 228,554,516,062.85/514,835.36
  6. Step 6: Final answer
    x = 443,937.10

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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.