Home / 664,136.32-917,507.28-435,237.52

Finding the Fourth Proportional to 664,136.32, 917,507.28 and 435,237.52

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Solution

The fourth proportional to 664,136.32, 917,507.28 and 435,237.52 is: 601,282.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,136.32 : 917,507.28 = 435,237.52 : x
  2. Step 2: Convert to fraction form
    664,136.32/917,507.28 = 435,237.52/x
  3. Step 3: Cross multiply
    664,136.32x = 917,507.28 × 435,237.52
  4. Step 4: Simplify right side
    664,136.32x = 399,333,593,129.15
  5. Step 5: Solve for x
    x = 399,333,593,129.15/664,136.32
  6. Step 6: Final answer
    x = 601,282.57

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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.