Home / 698,881.72-1,048,807.26-319,848.76

Finding the Fourth Proportional to 698,881.72, 1,048,807.26 and 319,848.76

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Solution

The fourth proportional to 698,881.72, 1,048,807.26 and 319,848.76 is: 479,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,881.72 : 1,048,807.26 = 319,848.76 : x
  2. Step 2: Convert to fraction form
    698,881.72/1,048,807.26 = 319,848.76/x
  3. Step 3: Cross multiply
    698,881.72x = 1,048,807.26 × 319,848.76
  4. Step 4: Simplify right side
    698,881.72x = 335,459,701,590.00
  5. Step 5: Solve for x
    x = 335,459,701,590.00/698,881.72
  6. Step 6: Final answer
    x = 479,994.96

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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.