Home / 664,071.78-916,304.65-373,643.04

Finding the Fourth Proportional to 664,071.78, 916,304.65 and 373,643.04

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Solution

The fourth proportional to 664,071.78, 916,304.65 and 373,643.04 is: 515,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,071.78 : 916,304.65 = 373,643.04 : x
  2. Step 2: Convert to fraction form
    664,071.78/916,304.65 = 373,643.04/x
  3. Step 3: Cross multiply
    664,071.78x = 916,304.65 × 373,643.04
  4. Step 4: Simplify right side
    664,071.78x = 342,370,859,595.91
  5. Step 5: Solve for x
    x = 342,370,859,595.91/664,071.78
  6. Step 6: Final answer
    x = 515,563.03

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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.