Home / 678,688.32-1,016,482.14-323,952.06

Finding the Fourth Proportional to 678,688.32, 1,016,482.14 and 323,952.06

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Solution

The fourth proportional to 678,688.32, 1,016,482.14 and 323,952.06 is: 485,188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,688.32 : 1,016,482.14 = 323,952.06 : x
  2. Step 2: Convert to fraction form
    678,688.32/1,016,482.14 = 323,952.06/x
  3. Step 3: Cross multiply
    678,688.32x = 1,016,482.14 × 323,952.06
  4. Step 4: Simplify right side
    678,688.32x = 329,291,483,206.21
  5. Step 5: Solve for x
    x = 329,291,483,206.21/678,688.32
  6. Step 6: Final answer
    x = 485,188.08

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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.