Home / 873,401.67-1,205,303.92-480,978.68

Finding the Fourth Proportional to 873,401.67, 1,205,303.92 and 480,978.68

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Solution

The fourth proportional to 873,401.67, 1,205,303.92 and 480,978.68 is: 663,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,401.67 : 1,205,303.92 = 480,978.68 : x
  2. Step 2: Convert to fraction form
    873,401.67/1,205,303.92 = 480,978.68/x
  3. Step 3: Cross multiply
    873,401.67x = 1,205,303.92 × 480,978.68
  4. Step 4: Simplify right side
    873,401.67x = 579,725,481,211.46
  5. Step 5: Solve for x
    x = 579,725,481,211.46/873,401.67
  6. Step 6: Final answer
    x = 663,755.87

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1.5x scale

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.