Home / 811,848.58-1,120,902.33-506,047.30

Finding the Fourth Proportional to 811,848.58, 1,120,902.33 and 506,047.30

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Solution

The fourth proportional to 811,848.58, 1,120,902.33 and 506,047.30 is: 698,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,848.58 : 1,120,902.33 = 506,047.30 : x
  2. Step 2: Convert to fraction form
    811,848.58/1,120,902.33 = 506,047.30/x
  3. Step 3: Cross multiply
    811,848.58x = 1,120,902.33 × 506,047.30
  4. Step 4: Simplify right side
    811,848.58x = 567,229,597,660.21
  5. Step 5: Solve for x
    x = 567,229,597,660.21/811,848.58
  6. Step 6: Final answer
    x = 698,688.91

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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.