Home / 456,031.12-684,185.08-323,168.40

Finding the Fourth Proportional to 456,031.12, 684,185.08 and 323,168.40

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Solution

The fourth proportional to 456,031.12, 684,185.08 and 323,168.40 is: 484,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,031.12 : 684,185.08 = 323,168.40 : x
  2. Step 2: Convert to fraction form
    456,031.12/684,185.08 = 323,168.40/x
  3. Step 3: Cross multiply
    456,031.12x = 684,185.08 × 323,168.40
  4. Step 4: Simplify right side
    456,031.12x = 221,106,997,607.47
  5. Step 5: Solve for x
    x = 221,106,997,607.47/456,031.12
  6. Step 6: Final answer
    x = 484,850.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.