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Finding the Fourth Proportional to 710,739.12, 980,725.44 and 456,434.88

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Solution

The fourth proportional to 710,739.12, 980,725.44 and 456,434.88 is: 629,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,739.12 : 980,725.44 = 456,434.88 : x
  2. Step 2: Convert to fraction form
    710,739.12/980,725.44 = 456,434.88/x
  3. Step 3: Cross multiply
    710,739.12x = 980,725.44 × 456,434.88
  4. Step 4: Simplify right side
    710,739.12x = 447,637,298,519.35
  5. Step 5: Solve for x
    x = 447,637,298,519.35/710,739.12
  6. Step 6: Final answer
    x = 629,819.42

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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.