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Finding the Fourth Proportional to 528,041.70, 792,062.55 and 469,980.90

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Solution

The fourth proportional to 528,041.70, 792,062.55 and 469,980.90 is: 704,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,041.70 : 792,062.55 = 469,980.90 : x
  2. Step 2: Convert to fraction form
    528,041.70/792,062.55 = 469,980.90/x
  3. Step 3: Cross multiply
    528,041.70x = 792,062.55 × 469,980.90
  4. Step 4: Simplify right side
    528,041.70x = 372,254,270,105.30
  5. Step 5: Solve for x
    x = 372,254,270,105.30/528,041.70
  6. Step 6: Final answer
    x = 704,971.35

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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.