Home / 981,477.68-1,472,216.88-307,611.28

Finding the Fourth Proportional to 981,477.68, 1,472,216.88 and 307,611.28

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Solution

The fourth proportional to 981,477.68, 1,472,216.88 and 307,611.28 is: 461,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,477.68 : 1,472,216.88 = 307,611.28 : x
  2. Step 2: Convert to fraction form
    981,477.68/1,472,216.88 = 307,611.28/x
  3. Step 3: Cross multiply
    981,477.68x = 1,472,216.88 × 307,611.28
  4. Step 4: Simplify right side
    981,477.68x = 452,870,518,894.41
  5. Step 5: Solve for x
    x = 452,870,518,894.41/981,477.68
  6. Step 6: Final answer
    x = 461,417.03

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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.