Home / 672,678.06-1,009,263.12-313,020.44

Finding the Fourth Proportional to 672,678.06, 1,009,263.12 and 313,020.44

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Solution

The fourth proportional to 672,678.06, 1,009,263.12 and 313,020.44 is: 469,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,678.06 : 1,009,263.12 = 313,020.44 : x
  2. Step 2: Convert to fraction form
    672,678.06/1,009,263.12 = 313,020.44/x
  3. Step 3: Cross multiply
    672,678.06x = 1,009,263.12 × 313,020.44
  4. Step 4: Simplify right side
    672,678.06x = 315,919,985,898.17
  5. Step 5: Solve for x
    x = 315,919,985,898.17/672,678.06
  6. Step 6: Final answer
    x = 469,645.15

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1.5x scale

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.