Home / 771,523.70-1,064,691.45-427,358.48

Finding the Fourth Proportional to 771,523.70, 1,064,691.45 and 427,358.48

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Solution

The fourth proportional to 771,523.70, 1,064,691.45 and 427,358.48 is: 589,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,523.70 : 1,064,691.45 = 427,358.48 : x
  2. Step 2: Convert to fraction form
    771,523.70/1,064,691.45 = 427,358.48/x
  3. Step 3: Cross multiply
    771,523.70x = 1,064,691.45 × 427,358.48
  4. Step 4: Simplify right side
    771,523.70x = 455,004,914,417.54
  5. Step 5: Solve for x
    x = 455,004,914,417.54/771,523.70
  6. Step 6: Final answer
    x = 589,748.46

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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.