Home / 715,574.18-987,081.20-446,835.62

Finding the Fourth Proportional to 715,574.18, 987,081.20 and 446,835.62

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Solution

The fourth proportional to 715,574.18, 987,081.20 and 446,835.62 is: 616,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,574.18 : 987,081.20 = 446,835.62 : x
  2. Step 2: Convert to fraction form
    715,574.18/987,081.20 = 446,835.62/x
  3. Step 3: Cross multiply
    715,574.18x = 987,081.20 × 446,835.62
  4. Step 4: Simplify right side
    715,574.18x = 441,063,039,992.34
  5. Step 5: Solve for x
    x = 441,063,039,992.34/715,574.18
  6. Step 6: Final answer
    x = 616,376.40

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1.5x scale

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.