Home / 742,389.54-1,024,500.36-402,857.82

Finding the Fourth Proportional to 742,389.54, 1,024,500.36 and 402,857.82

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Solution

The fourth proportional to 742,389.54, 1,024,500.36 and 402,857.82 is: 555,945.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,389.54 : 1,024,500.36 = 402,857.82 : x
  2. Step 2: Convert to fraction form
    742,389.54/1,024,500.36 = 402,857.82/x
  3. Step 3: Cross multiply
    742,389.54x = 1,024,500.36 × 402,857.82
  4. Step 4: Simplify right side
    742,389.54x = 412,727,981,618.82
  5. Step 5: Solve for x
    x = 412,727,981,618.82/742,389.54
  6. Step 6: Final answer
    x = 555,945.31

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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.