Home / 436,479.47-654,746.88-136,971.87

Finding the Fourth Proportional to 436,479.47, 654,746.88 and 136,971.87

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Solution

The fourth proportional to 436,479.47, 654,746.88 and 136,971.87 is: 205,466.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,479.47 : 654,746.88 = 136,971.87 : x
  2. Step 2: Convert to fraction form
    436,479.47/654,746.88 = 136,971.87/x
  3. Step 3: Cross multiply
    436,479.47x = 654,746.88 × 136,971.87
  4. Step 4: Simplify right side
    436,479.47x = 89,681,904,530.27
  5. Step 5: Solve for x
    x = 89,681,904,530.27/436,479.47
  6. Step 6: Final answer
    x = 205,466.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.