Home / 668,854.29-1,003,609.50-313,897.17

Finding the Fourth Proportional to 668,854.29, 1,003,609.50 and 313,897.17

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Solution

The fourth proportional to 668,854.29, 1,003,609.50 and 313,897.17 is: 470,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,854.29 : 1,003,609.50 = 313,897.17 : x
  2. Step 2: Convert to fraction form
    668,854.29/1,003,609.50 = 313,897.17/x
  3. Step 3: Cross multiply
    668,854.29x = 1,003,609.50 × 313,897.17
  4. Step 4: Simplify right side
    668,854.29x = 315,030,181,835.12
  5. Step 5: Solve for x
    x = 315,030,181,835.12/668,854.29
  6. Step 6: Final answer
    x = 470,999.72

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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.