Home / 438,118.72-604,578.64-247,120.72

Finding the Fourth Proportional to 438,118.72, 604,578.64 and 247,120.72

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Solution

The fourth proportional to 438,118.72, 604,578.64 and 247,120.72 is: 341,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,118.72 : 604,578.64 = 247,120.72 : x
  2. Step 2: Convert to fraction form
    438,118.72/604,578.64 = 247,120.72/x
  3. Step 3: Cross multiply
    438,118.72x = 604,578.64 × 247,120.72
  4. Step 4: Simplify right side
    438,118.72x = 149,403,908,813.42
  5. Step 5: Solve for x
    x = 149,403,908,813.42/438,118.72
  6. Step 6: Final answer
    x = 341,012.38

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1.5x scale

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.