Home / 742,131.82-1,024,141.62-402,600.07

Finding the Fourth Proportional to 742,131.82, 1,024,141.62 and 402,600.07

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Solution

The fourth proportional to 742,131.82, 1,024,141.62 and 402,600.07 is: 555,587.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,131.82 : 1,024,141.62 = 402,600.07 : x
  2. Step 2: Convert to fraction form
    742,131.82/1,024,141.62 = 402,600.07/x
  3. Step 3: Cross multiply
    742,131.82x = 1,024,141.62 × 402,600.07
  4. Step 4: Simplify right side
    742,131.82x = 412,319,487,901.91
  5. Step 5: Solve for x
    x = 412,319,487,901.91/742,131.82
  6. Step 6: Final answer
    x = 555,587.94

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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.