Home / 724,926.72-1,087,110.63-275,410.74

Finding the Fourth Proportional to 724,926.72, 1,087,110.63 and 275,410.74

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Solution

The fourth proportional to 724,926.72, 1,087,110.63 and 275,410.74 is: 413,009.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,926.72 : 1,087,110.63 = 275,410.74 : x
  2. Step 2: Convert to fraction form
    724,926.72/1,087,110.63 = 275,410.74/x
  3. Step 3: Cross multiply
    724,926.72x = 1,087,110.63 × 275,410.74
  4. Step 4: Simplify right side
    724,926.72x = 299,401,943,070.17
  5. Step 5: Solve for x
    x = 299,401,943,070.17/724,926.72
  6. Step 6: Final answer
    x = 413,009.94

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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.