Home / 923,208.50-1,274,071.74-520,800.50

Finding the Fourth Proportional to 923,208.50, 1,274,071.74 and 520,800.50

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Solution

The fourth proportional to 923,208.50, 1,274,071.74 and 520,800.50 is: 718,729.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,208.50 : 1,274,071.74 = 520,800.50 : x
  2. Step 2: Convert to fraction form
    923,208.50/1,274,071.74 = 520,800.50/x
  3. Step 3: Cross multiply
    923,208.50x = 1,274,071.74 × 520,800.50
  4. Step 4: Simplify right side
    923,208.50x = 663,537,199,227.87
  5. Step 5: Solve for x
    x = 663,537,199,227.87/923,208.50
  6. Step 6: Final answer
    x = 718,729.52

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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.