Home / 803,398.91-1,108,653.40-440,813.75

Finding the Fourth Proportional to 803,398.91, 1,108,653.40 and 440,813.75

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Solution

The fourth proportional to 803,398.91, 1,108,653.40 and 440,813.75 is: 608,302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,398.91 : 1,108,653.40 = 440,813.75 : x
  2. Step 2: Convert to fraction form
    803,398.91/1,108,653.40 = 440,813.75/x
  3. Step 3: Cross multiply
    803,398.91x = 1,108,653.40 × 440,813.75
  4. Step 4: Simplify right side
    803,398.91x = 488,709,666,026.90
  5. Step 5: Solve for x
    x = 488,709,666,026.90/803,398.91
  6. Step 6: Final answer
    x = 608,302.62

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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.