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Finding the Fourth Proportional to 528,047.80, 792,071.70 and 496,943.80

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Solution

The fourth proportional to 528,047.80, 792,071.70 and 496,943.80 is: 745,415.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,047.80 : 792,071.70 = 496,943.80 : x
  2. Step 2: Convert to fraction form
    528,047.80/792,071.70 = 496,943.80/x
  3. Step 3: Cross multiply
    528,047.80x = 792,071.70 × 496,943.80
  4. Step 4: Simplify right side
    528,047.80x = 393,615,120,470.46
  5. Step 5: Solve for x
    x = 393,615,120,470.46/528,047.80
  6. Step 6: Final answer
    x = 745,415.70

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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.