Home / 489,848.10-676,089.86-283,125.30

Finding the Fourth Proportional to 489,848.10, 676,089.86 and 283,125.30

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Solution

The fourth proportional to 489,848.10, 676,089.86 and 283,125.30 is: 390,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,848.10 : 676,089.86 = 283,125.30 : x
  2. Step 2: Convert to fraction form
    489,848.10/676,089.86 = 283,125.30/x
  3. Step 3: Cross multiply
    489,848.10x = 676,089.86 × 283,125.30
  4. Step 4: Simplify right side
    489,848.10x = 191,418,143,023.83
  5. Step 5: Solve for x
    x = 191,418,143,023.83/489,848.10
  6. Step 6: Final answer
    x = 390,770.41

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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.