Home / 753,905.14-1,129,233.79-353,946.58

Finding the Fourth Proportional to 753,905.14, 1,129,233.79 and 353,946.58

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Solution

The fourth proportional to 753,905.14, 1,129,233.79 and 353,946.58 is: 530,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,905.14 : 1,129,233.79 = 353,946.58 : x
  2. Step 2: Convert to fraction form
    753,905.14/1,129,233.79 = 353,946.58/x
  3. Step 3: Cross multiply
    753,905.14x = 1,129,233.79 × 353,946.58
  4. Step 4: Simplify right side
    753,905.14x = 399,688,437,990.94
  5. Step 5: Solve for x
    x = 399,688,437,990.94/753,905.14
  6. Step 6: Final answer
    x = 530,157.47

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1.5x scale

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.