Home / 855,235.32-1,180,144.64-511,002.72

Finding the Fourth Proportional to 855,235.32, 1,180,144.64 and 511,002.72

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Solution

The fourth proportional to 855,235.32, 1,180,144.64 and 511,002.72 is: 705,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,235.32 : 1,180,144.64 = 511,002.72 : x
  2. Step 2: Convert to fraction form
    855,235.32/1,180,144.64 = 511,002.72/x
  3. Step 3: Cross multiply
    855,235.32x = 1,180,144.64 × 511,002.72
  4. Step 4: Simplify right side
    855,235.32x = 603,057,118,478.41
  5. Step 5: Solve for x
    x = 603,057,118,478.41/855,235.32
  6. Step 6: Final answer
    x = 705,135.89

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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.