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Finding the Fourth Proportional to 705,029.52, 972,580.32 and 450,112.80

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Solution

The fourth proportional to 705,029.52, 972,580.32 and 450,112.80 is: 620,925.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,029.52 : 972,580.32 = 450,112.80 : x
  2. Step 2: Convert to fraction form
    705,029.52/972,580.32 = 450,112.80/x
  3. Step 3: Cross multiply
    705,029.52x = 972,580.32 × 450,112.80
  4. Step 4: Simplify right side
    705,029.52x = 437,770,851,060.10
  5. Step 5: Solve for x
    x = 437,770,851,060.10/705,029.52
  6. Step 6: Final answer
    x = 620,925.56

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1.5x scale

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.