Home / 771,242.96-1,064,315.84-422,381.54

Finding the Fourth Proportional to 771,242.96, 1,064,315.84 and 422,381.54

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Solution

The fourth proportional to 771,242.96, 1,064,315.84 and 422,381.54 is: 582,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,242.96 : 1,064,315.84 = 422,381.54 : x
  2. Step 2: Convert to fraction form
    771,242.96/1,064,315.84 = 422,381.54/x
  3. Step 3: Cross multiply
    771,242.96x = 1,064,315.84 × 422,381.54
  4. Step 4: Simplify right side
    771,242.96x = 449,547,364,094.48
  5. Step 5: Solve for x
    x = 449,547,364,094.48/771,242.96
  6. Step 6: Final answer
    x = 582,886.83

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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.