Home / 513,050.77-707,999.56-280,474.26

Finding the Fourth Proportional to 513,050.77, 707,999.56 and 280,474.26

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Solution

The fourth proportional to 513,050.77, 707,999.56 and 280,474.26 is: 387,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,050.77 : 707,999.56 = 280,474.26 : x
  2. Step 2: Convert to fraction form
    513,050.77/707,999.56 = 280,474.26/x
  3. Step 3: Cross multiply
    513,050.77x = 707,999.56 × 280,474.26
  4. Step 4: Simplify right side
    513,050.77x = 198,575,652,671.33
  5. Step 5: Solve for x
    x = 198,575,652,671.33/513,050.77
  6. Step 6: Final answer
    x = 387,048.74

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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.