Home / 935,498.72-1,290,918.12-553,450.88

Finding the Fourth Proportional to 935,498.72, 1,290,918.12 and 553,450.88

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Solution

The fourth proportional to 935,498.72, 1,290,918.12 and 553,450.88 is: 763,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,498.72 : 1,290,918.12 = 553,450.88 : x
  2. Step 2: Convert to fraction form
    935,498.72/1,290,918.12 = 553,450.88/x
  3. Step 3: Cross multiply
    935,498.72x = 1,290,918.12 × 553,450.88
  4. Step 4: Simplify right side
    935,498.72x = 714,459,769,521.95
  5. Step 5: Solve for x
    x = 714,459,769,521.95/935,498.72
  6. Step 6: Final answer
    x = 763,720.73

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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.