Home / 519,742.12-717,416.84-304,803.76

Finding the Fourth Proportional to 519,742.12, 717,416.84 and 304,803.76

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Solution

The fourth proportional to 519,742.12, 717,416.84 and 304,803.76 is: 420,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,742.12 : 717,416.84 = 304,803.76 : x
  2. Step 2: Convert to fraction form
    519,742.12/717,416.84 = 304,803.76/x
  3. Step 3: Cross multiply
    519,742.12x = 717,416.84 × 304,803.76
  4. Step 4: Simplify right side
    519,742.12x = 218,671,350,319.32
  5. Step 5: Solve for x
    x = 218,671,350,319.32/519,742.12
  6. Step 6: Final answer
    x = 420,730.48

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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.