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Finding the Fourth Proportional to 486,573.72, 671,787.68 and 435,498

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Solution

The fourth proportional to 486,573.72, 671,787.68 and 435,498 is: 601,270.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,573.72 : 671,787.68 = 435,498 : x
  2. Step 2: Convert to fraction form
    486,573.72/671,787.68 = 435,498/x
  3. Step 3: Cross multiply
    486,573.72x = 671,787.68 × 435,498
  4. Step 4: Simplify right side
    486,573.72x = 292,562,191,064.64
  5. Step 5: Solve for x
    x = 292,562,191,064.64/486,573.72
  6. Step 6: Final answer
    x = 601,270.02

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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.