Home / 531,451.50-733,432.23-305,111.58

Finding the Fourth Proportional to 531,451.50, 733,432.23 and 305,111.58

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Solution

The fourth proportional to 531,451.50, 733,432.23 and 305,111.58 is: 421,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,451.50 : 733,432.23 = 305,111.58 : x
  2. Step 2: Convert to fraction form
    531,451.50/733,432.23 = 305,111.58/x
  3. Step 3: Cross multiply
    531,451.50x = 733,432.23 × 305,111.58
  4. Step 4: Simplify right side
    531,451.50x = 223,778,666,518.22
  5. Step 5: Solve for x
    x = 223,778,666,518.22/531,451.50
  6. Step 6: Final answer
    x = 421,070.72

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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.