Home / 743,795.84-1,026,468.78-421,502.52

Finding the Fourth Proportional to 743,795.84, 1,026,468.78 and 421,502.52

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Solution

The fourth proportional to 743,795.84, 1,026,468.78 and 421,502.52 is: 581,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,795.84 : 1,026,468.78 = 421,502.52 : x
  2. Step 2: Convert to fraction form
    743,795.84/1,026,468.78 = 421,502.52/x
  3. Step 3: Cross multiply
    743,795.84x = 1,026,468.78 × 421,502.52
  4. Step 4: Simplify right side
    743,795.84x = 432,659,177,471.33
  5. Step 5: Solve for x
    x = 432,659,177,471.33/743,795.84
  6. Step 6: Final answer
    x = 581,690.77

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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.