Home / 677,916.48-1,016,270.46-257,487.60

Finding the Fourth Proportional to 677,916.48, 1,016,270.46 and 257,487.60

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Solution

The fourth proportional to 677,916.48, 1,016,270.46 and 257,487.60 is: 386,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,916.48 : 1,016,270.46 = 257,487.60 : x
  2. Step 2: Convert to fraction form
    677,916.48/1,016,270.46 = 257,487.60/x
  3. Step 3: Cross multiply
    677,916.48x = 1,016,270.46 × 257,487.60
  4. Step 4: Simplify right side
    677,916.48x = 261,677,041,696.30
  5. Step 5: Solve for x
    x = 261,677,041,696.30/677,916.48
  6. Step 6: Final answer
    x = 386,001.89

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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.