Home / 740,083.42-1,021,315.08-400,551.67

Finding the Fourth Proportional to 740,083.42, 1,021,315.08 and 400,551.67

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Solution

The fourth proportional to 740,083.42, 1,021,315.08 and 400,551.67 is: 552,761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,083.42 : 1,021,315.08 = 400,551.67 : x
  2. Step 2: Convert to fraction form
    740,083.42/1,021,315.08 = 400,551.67/x
  3. Step 3: Cross multiply
    740,083.42x = 1,021,315.08 × 400,551.67
  4. Step 4: Simplify right side
    740,083.42x = 409,089,460,890.18
  5. Step 5: Solve for x
    x = 409,089,460,890.18/740,083.42
  6. Step 6: Final answer
    x = 552,761.28

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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.