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Finding the Fourth Proportional to 542,088.37, 748,081.21 and 300,386.59

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Solution

The fourth proportional to 542,088.37, 748,081.21 and 300,386.59 is: 414,533.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,088.37 : 748,081.21 = 300,386.59 : x
  2. Step 2: Convert to fraction form
    542,088.37/748,081.21 = 300,386.59/x
  3. Step 3: Cross multiply
    542,088.37x = 748,081.21 × 300,386.59
  4. Step 4: Simplify right side
    542,088.37x = 224,713,563,714.97
  5. Step 5: Solve for x
    x = 224,713,563,714.97/542,088.37
  6. Step 6: Final answer
    x = 414,533.08

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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.