Home / 699,870.51-1,048,124.28-399,440.34

Finding the Fourth Proportional to 699,870.51, 1,048,124.28 and 399,440.34

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Solution

The fourth proportional to 699,870.51, 1,048,124.28 and 399,440.34 is: 598,200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,870.51 : 1,048,124.28 = 399,440.34 : x
  2. Step 2: Convert to fraction form
    699,870.51/1,048,124.28 = 399,440.34/x
  3. Step 3: Cross multiply
    699,870.51x = 1,048,124.28 × 399,440.34
  4. Step 4: Simplify right side
    699,870.51x = 418,663,118,765.46
  5. Step 5: Solve for x
    x = 418,663,118,765.46/699,870.51
  6. Step 6: Final answer
    x = 598,200.83

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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.