Home / 985,878.30-1,360,575.05-556,001.58

Finding the Fourth Proportional to 985,878.30, 1,360,575.05 and 556,001.58

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Solution

The fourth proportional to 985,878.30, 1,360,575.05 and 556,001.58 is: 767,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,878.30 : 1,360,575.05 = 556,001.58 : x
  2. Step 2: Convert to fraction form
    985,878.30/1,360,575.05 = 556,001.58/x
  3. Step 3: Cross multiply
    985,878.30x = 1,360,575.05 × 556,001.58
  4. Step 4: Simplify right side
    985,878.30x = 756,481,872,753.92
  5. Step 5: Solve for x
    x = 756,481,872,753.92/985,878.30
  6. Step 6: Final answer
    x = 767,317.71

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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.