Home / 742,908.73-1,025,185.31-403,369.21

Finding the Fourth Proportional to 742,908.73, 1,025,185.31 and 403,369.21

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Solution

The fourth proportional to 742,908.73, 1,025,185.31 and 403,369.21 is: 556,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,908.73 : 1,025,185.31 = 403,369.21 : x
  2. Step 2: Convert to fraction form
    742,908.73/1,025,185.31 = 403,369.21/x
  3. Step 3: Cross multiply
    742,908.73x = 1,025,185.31 × 403,369.21
  4. Step 4: Simplify right side
    742,908.73x = 413,528,186,581.46
  5. Step 5: Solve for x
    x = 413,528,186,581.46/742,908.73
  6. Step 6: Final answer
    x = 556,633.90

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Double scale
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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.