Home / 411,738.57-617,657.67-145,444.59

Finding the Fourth Proportional to 411,738.57, 617,657.67 and 145,444.59

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Solution

The fourth proportional to 411,738.57, 617,657.67 and 145,444.59 is: 218,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,738.57 : 617,657.67 = 145,444.59 : x
  2. Step 2: Convert to fraction form
    411,738.57/617,657.67 = 145,444.59/x
  3. Step 3: Cross multiply
    411,738.57x = 617,657.67 × 145,444.59
  4. Step 4: Simplify right side
    411,738.57x = 89,834,966,573.51
  5. Step 5: Solve for x
    x = 89,834,966,573.51/411,738.57
  6. Step 6: Final answer
    x = 218,184.48

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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.