Home / 412,870.47-619,157.09-142,925.28

Finding the Fourth Proportional to 412,870.47, 619,157.09 and 142,925.28

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Solution

The fourth proportional to 412,870.47, 619,157.09 and 142,925.28 is: 214,336.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,870.47 : 619,157.09 = 142,925.28 : x
  2. Step 2: Convert to fraction form
    412,870.47/619,157.09 = 142,925.28/x
  3. Step 3: Cross multiply
    412,870.47x = 619,157.09 × 142,925.28
  4. Step 4: Simplify right side
    412,870.47x = 88,493,199,737.61
  5. Step 5: Solve for x
    x = 88,493,199,737.61/412,870.47
  6. Step 6: Final answer
    x = 214,336.47

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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.