Home / 711,648.51-981,977.95-425,107.77

Finding the Fourth Proportional to 711,648.51, 981,977.95 and 425,107.77

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Solution

The fourth proportional to 711,648.51, 981,977.95 and 425,107.77 is: 586,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,648.51 : 981,977.95 = 425,107.77 : x
  2. Step 2: Convert to fraction form
    711,648.51/981,977.95 = 425,107.77/x
  3. Step 3: Cross multiply
    711,648.51x = 981,977.95 × 425,107.77
  4. Step 4: Simplify right side
    711,648.51x = 417,446,449,478.24
  5. Step 5: Solve for x
    x = 417,446,449,478.24/711,648.51
  6. Step 6: Final answer
    x = 586,590.78

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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.