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Finding the Fourth Proportional to 528,079.70, 792,508.35 and 212,762.90

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Solution

The fourth proportional to 528,079.70, 792,508.35 and 212,762.90 is: 319,301.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,079.70 : 792,508.35 = 212,762.90 : x
  2. Step 2: Convert to fraction form
    528,079.70/792,508.35 = 212,762.90/x
  3. Step 3: Cross multiply
    528,079.70x = 792,508.35 × 212,762.90
  4. Step 4: Simplify right side
    528,079.70x = 168,616,374,820.22
  5. Step 5: Solve for x
    x = 168,616,374,820.22/528,079.70
  6. Step 6: Final answer
    x = 319,301.00

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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.