Home / 987,864.60-1,481,683.70-258,458.23

Finding the Fourth Proportional to 987,864.60, 1,481,683.70 and 258,458.23

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Solution

The fourth proportional to 987,864.60, 1,481,683.70 and 258,458.23 is: 387,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,864.60 : 1,481,683.70 = 258,458.23 : x
  2. Step 2: Convert to fraction form
    987,864.60/1,481,683.70 = 258,458.23/x
  3. Step 3: Cross multiply
    987,864.60x = 1,481,683.70 × 258,458.23
  4. Step 4: Simplify right side
    987,864.60x = 382,953,346,521.85
  5. Step 5: Solve for x
    x = 382,953,346,521.85/987,864.60
  6. Step 6: Final answer
    x = 387,657.73

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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.