Home / 771,512.50-1,064,640.27-427,328.02

Finding the Fourth Proportional to 771,512.50, 1,064,640.27 and 427,328.02

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Solution

The fourth proportional to 771,512.50, 1,064,640.27 and 427,328.02 is: 589,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,512.50 : 1,064,640.27 = 427,328.02 : x
  2. Step 2: Convert to fraction form
    771,512.50/1,064,640.27 = 427,328.02/x
  3. Step 3: Cross multiply
    771,512.50x = 1,064,640.27 × 427,328.02
  4. Step 4: Simplify right side
    771,512.50x = 454,950,618,591.37
  5. Step 5: Solve for x
    x = 454,950,618,591.37/771,512.50
  6. Step 6: Final answer
    x = 589,686.65

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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.