Home / 742,890.48-1,025,192.95-403,358.73

Finding the Fourth Proportional to 742,890.48, 1,025,192.95 and 403,358.73

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Solution

The fourth proportional to 742,890.48, 1,025,192.95 and 403,358.73 is: 556,637.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,890.48 : 1,025,192.95 = 403,358.73 : x
  2. Step 2: Convert to fraction form
    742,890.48/1,025,192.95 = 403,358.73/x
  3. Step 3: Cross multiply
    742,890.48x = 1,025,192.95 × 403,358.73
  4. Step 4: Simplify right side
    742,890.48x = 413,520,526,316.95
  5. Step 5: Solve for x
    x = 413,520,526,316.95/742,890.48
  6. Step 6: Final answer
    x = 556,637.27

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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.