Home / 1,252,417.69-1,728,339.75-679,457.86

Finding the Fourth Proportional to 1,252,417.69, 1,728,339.75 and 679,457.86

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Solution

The fourth proportional to 1,252,417.69, 1,728,339.75 and 679,457.86 is: 937,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,417.69 : 1,728,339.75 = 679,457.86 : x
  2. Step 2: Convert to fraction form
    1,252,417.69/1,728,339.75 = 679,457.86/x
  3. Step 3: Cross multiply
    1,252,417.69x = 1,728,339.75 × 679,457.86
  4. Step 4: Simplify right side
    1,252,417.69x = 1,174,334,023,567.09
  5. Step 5: Solve for x
    x = 1,174,334,023,567.09/1,252,417.69
  6. Step 6: Final answer
    x = 937,653.66

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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.