Home / 455,947.07-629,187.35-251,987.45

Finding the Fourth Proportional to 455,947.07, 629,187.35 and 251,987.45

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Solution

The fourth proportional to 455,947.07, 629,187.35 and 251,987.45 is: 347,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,947.07 : 629,187.35 = 251,987.45 : x
  2. Step 2: Convert to fraction form
    455,947.07/629,187.35 = 251,987.45/x
  3. Step 3: Cross multiply
    455,947.07x = 629,187.35 × 251,987.45
  4. Step 4: Simplify right side
    455,947.07x = 158,547,311,492.88
  5. Step 5: Solve for x
    x = 158,547,311,492.88/455,947.07
  6. Step 6: Final answer
    x = 347,731.84

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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.