Home / 905,031.54-1,248,870.69-523,083.06

Finding the Fourth Proportional to 905,031.54, 1,248,870.69 and 523,083.06

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Solution

The fourth proportional to 905,031.54, 1,248,870.69 and 523,083.06 is: 721,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,031.54 : 1,248,870.69 = 523,083.06 : x
  2. Step 2: Convert to fraction form
    905,031.54/1,248,870.69 = 523,083.06/x
  3. Step 3: Cross multiply
    905,031.54x = 1,248,870.69 × 523,083.06
  4. Step 4: Simplify right side
    905,031.54x = 653,263,102,069.51
  5. Step 5: Solve for x
    x = 653,263,102,069.51/905,031.54
  6. Step 6: Final answer
    x = 721,812.53

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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.