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Finding the Fourth Proportional to 529,782.78, 794,666.72 and 130,426.86

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Solution

The fourth proportional to 529,782.78, 794,666.72 and 130,426.86 is: 195,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,782.78 : 794,666.72 = 130,426.86 : x
  2. Step 2: Convert to fraction form
    529,782.78/794,666.72 = 130,426.86/x
  3. Step 3: Cross multiply
    529,782.78x = 794,666.72 × 130,426.86
  4. Step 4: Simplify right side
    529,782.78x = 103,645,885,036.10
  5. Step 5: Solve for x
    x = 103,645,885,036.10/529,782.78
  6. Step 6: Final answer
    x = 195,638.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.