Home / 829,678.80-1,243,643.40-324,044.40

Finding the Fourth Proportional to 829,678.80, 1,243,643.40 and 324,044.40

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Solution

The fourth proportional to 829,678.80, 1,243,643.40 and 324,044.40 is: 485,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,678.80 : 1,243,643.40 = 324,044.40 : x
  2. Step 2: Convert to fraction form
    829,678.80/1,243,643.40 = 324,044.40/x
  3. Step 3: Cross multiply
    829,678.80x = 1,243,643.40 × 324,044.40
  4. Step 4: Simplify right side
    829,678.80x = 402,995,679,366.96
  5. Step 5: Solve for x
    x = 402,995,679,366.96/829,678.80
  6. Step 6: Final answer
    x = 485,724.93

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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.