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Finding the Fourth Proportional to 707,996.54, 977,031.36 and 385,705.86

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Solution

The fourth proportional to 707,996.54, 977,031.36 and 385,705.86 is: 532,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,996.54 : 977,031.36 = 385,705.86 : x
  2. Step 2: Convert to fraction form
    707,996.54/977,031.36 = 385,705.86/x
  3. Step 3: Cross multiply
    707,996.54x = 977,031.36 × 385,705.86
  4. Step 4: Simplify right side
    707,996.54x = 376,846,720,955.77
  5. Step 5: Solve for x
    x = 376,846,720,955.77/707,996.54
  6. Step 6: Final answer
    x = 532,271.98

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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.