Home / 388,933.80-583,400.70-326,725.80

Finding the Fourth Proportional to 388,933.80, 583,400.70 and 326,725.80

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Solution

The fourth proportional to 388,933.80, 583,400.70 and 326,725.80 is: 490,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,933.80 : 583,400.70 = 326,725.80 : x
  2. Step 2: Convert to fraction form
    388,933.80/583,400.70 = 326,725.80/x
  3. Step 3: Cross multiply
    388,933.80x = 583,400.70 × 326,725.80
  4. Step 4: Simplify right side
    388,933.80x = 190,612,060,428.06
  5. Step 5: Solve for x
    x = 190,612,060,428.06/388,933.80
  6. Step 6: Final answer
    x = 490,088.70

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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.