Home / 501,472,124.79-748,831,378.44-409,538,367.65

Finding the Fourth Proportional to 501,472,124.79, 748,831,378.44 and 409,538,367.65

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Solution

The fourth proportional to 501,472,124.79, 748,831,378.44 and 409,538,367.65 is: 611,549,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,472,124.79 : 748,831,378.44 = 409,538,367.65 : x
  2. Step 2: Convert to fraction form
    501,472,124.79/748,831,378.44 = 409,538,367.65/x
  3. Step 3: Cross multiply
    501,472,124.79x = 748,831,378.44 × 409,538,367.65
  4. Step 4: Simplify right side
    501,472,124.79x = 306,675,180,367,672,832
  5. Step 5: Solve for x
    x = 306,675,180,367,672,832/501,472,124.79
  6. Step 6: Final answer
    x = 611,549,805.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.