Home / 981,570.51-1,472,374.22-307,636.89

Finding the Fourth Proportional to 981,570.51, 1,472,374.22 and 307,636.89

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Solution

The fourth proportional to 981,570.51, 1,472,374.22 and 307,636.89 is: 461,461.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,570.51 : 1,472,374.22 = 307,636.89 : x
  2. Step 2: Convert to fraction form
    981,570.51/1,472,374.22 = 307,636.89/x
  3. Step 3: Cross multiply
    981,570.51x = 1,472,374.22 × 307,636.89
  4. Step 4: Simplify right side
    981,570.51x = 452,956,624,418.79
  5. Step 5: Solve for x
    x = 452,956,624,418.79/981,570.51
  6. Step 6: Final answer
    x = 461,461.12

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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.