Home / 829,657.80-1,243,611.90-324,023.40

Finding the Fourth Proportional to 829,657.80, 1,243,611.90 and 324,023.40

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Solution

The fourth proportional to 829,657.80, 1,243,611.90 and 324,023.40 is: 485,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,657.80 : 1,243,611.90 = 324,023.40 : x
  2. Step 2: Convert to fraction form
    829,657.80/1,243,611.90 = 324,023.40/x
  3. Step 3: Cross multiply
    829,657.80x = 1,243,611.90 × 324,023.40
  4. Step 4: Simplify right side
    829,657.80x = 402,959,356,118.46
  5. Step 5: Solve for x
    x = 402,959,356,118.46/829,657.80
  6. Step 6: Final answer
    x = 485,693.45

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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.