Home / 1,228,303.34-1,695,184.74-738,431.45

Finding the Fourth Proportional to 1,228,303.34, 1,695,184.74 and 738,431.45

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Solution

The fourth proportional to 1,228,303.34, 1,695,184.74 and 738,431.45 is: 1,019,111.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,303.34 : 1,695,184.74 = 738,431.45 : x
  2. Step 2: Convert to fraction form
    1,228,303.34/1,695,184.74 = 738,431.45/x
  3. Step 3: Cross multiply
    1,228,303.34x = 1,695,184.74 × 738,431.45
  4. Step 4: Simplify right side
    1,228,303.34x = 1,251,777,717,100.15
  5. Step 5: Solve for x
    x = 1,251,777,717,100.15/1,228,303.34
  6. Step 6: Final answer
    x = 1,019,111.23

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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.