Home / 742,361.63-1,024,461.78-402,829.88

Finding the Fourth Proportional to 742,361.63, 1,024,461.78 and 402,829.88

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Solution

The fourth proportional to 742,361.63, 1,024,461.78 and 402,829.88 is: 555,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,361.63 : 1,024,461.78 = 402,829.88 : x
  2. Step 2: Convert to fraction form
    742,361.63/1,024,461.78 = 402,829.88/x
  3. Step 3: Cross multiply
    742,361.63x = 1,024,461.78 × 402,829.88
  4. Step 4: Simplify right side
    742,361.63x = 412,683,809,269.07
  5. Step 5: Solve for x
    x = 412,683,809,269.07/742,361.63
  6. Step 6: Final answer
    x = 555,906.71

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1.5x scale

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.