Home / 472,660.95-705,977.58-427,612.85

Finding the Fourth Proportional to 472,660.95, 705,977.58 and 427,612.85

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Solution

The fourth proportional to 472,660.95, 705,977.58 and 427,612.85 is: 638,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,660.95 : 705,977.58 = 427,612.85 : x
  2. Step 2: Convert to fraction form
    472,660.95/705,977.58 = 427,612.85/x
  3. Step 3: Cross multiply
    472,660.95x = 705,977.58 × 427,612.85
  4. Step 4: Simplify right side
    472,660.95x = 301,885,085,531.10
  5. Step 5: Solve for x
    x = 301,885,085,531.10/472,660.95
  6. Step 6: Final answer
    x = 638,692.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.