Home / 771,592.74-1,064,786.45-427,427.64

Finding the Fourth Proportional to 771,592.74, 1,064,786.45 and 427,427.64

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Solution

The fourth proportional to 771,592.74, 1,064,786.45 and 427,427.64 is: 589,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,592.74 : 1,064,786.45 = 427,427.64 : x
  2. Step 2: Convert to fraction form
    771,592.74/1,064,786.45 = 427,427.64/x
  3. Step 3: Cross multiply
    771,592.74x = 1,064,786.45 × 427,427.64
  4. Step 4: Simplify right side
    771,592.74x = 455,119,159,427.48
  5. Step 5: Solve for x
    x = 455,119,159,427.48/771,592.74
  6. Step 6: Final answer
    x = 589,843.76

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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.