Home / 740,085.92-1,021,318.52-400,554.16

Finding the Fourth Proportional to 740,085.92, 1,021,318.52 and 400,554.16

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Solution

The fourth proportional to 740,085.92, 1,021,318.52 and 400,554.16 is: 552,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,085.92 : 1,021,318.52 = 400,554.16 : x
  2. Step 2: Convert to fraction form
    740,085.92/1,021,318.52 = 400,554.16/x
  3. Step 3: Cross multiply
    740,085.92x = 1,021,318.52 × 400,554.16
  4. Step 4: Simplify right side
    740,085.92x = 409,093,381,871.04
  5. Step 5: Solve for x
    x = 409,093,381,871.04/740,085.92
  6. Step 6: Final answer
    x = 552,764.71

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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.