Home / 739,169.42-1,020,055.28-399,637.67

Finding the Fourth Proportional to 739,169.42, 1,020,055.28 and 399,637.67

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Solution

The fourth proportional to 739,169.42, 1,020,055.28 and 399,637.67 is: 551,500.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,169.42 : 1,020,055.28 = 399,637.67 : x
  2. Step 2: Convert to fraction form
    739,169.42/1,020,055.28 = 399,637.67/x
  3. Step 3: Cross multiply
    739,169.42x = 1,020,055.28 × 399,637.67
  4. Step 4: Simplify right side
    739,169.42x = 407,652,508,271.93
  5. Step 5: Solve for x
    x = 407,652,508,271.93/739,169.42
  6. Step 6: Final answer
    x = 551,500.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.