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Finding the Fourth Proportional to 434,981.34, 652,638.30 and 245,655.48

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Solution

The fourth proportional to 434,981.34, 652,638.30 and 245,655.48 is: 368,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,981.34 : 652,638.30 = 245,655.48 : x
  2. Step 2: Convert to fraction form
    434,981.34/652,638.30 = 245,655.48/x
  3. Step 3: Cross multiply
    434,981.34x = 652,638.30 × 245,655.48
  4. Step 4: Simplify right side
    434,981.34x = 160,324,174,852.88
  5. Step 5: Solve for x
    x = 160,324,174,852.88/434,981.34
  6. Step 6: Final answer
    x = 368,577.13

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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.