Home / 448,816.62-619,421.76-257,829.60

Finding the Fourth Proportional to 448,816.62, 619,421.76 and 257,829.60

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Solution

The fourth proportional to 448,816.62, 619,421.76 and 257,829.60 is: 355,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,816.62 : 619,421.76 = 257,829.60 : x
  2. Step 2: Convert to fraction form
    448,816.62/619,421.76 = 257,829.60/x
  3. Step 3: Cross multiply
    448,816.62x = 619,421.76 × 257,829.60
  4. Step 4: Simplify right side
    448,816.62x = 159,705,264,612.10
  5. Step 5: Solve for x
    x = 159,705,264,612.10/448,816.62
  6. Step 6: Final answer
    x = 355,836.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.