Home / 857,462.88-1,286,692.55-384,148.24

Finding the Fourth Proportional to 857,462.88, 1,286,692.55 and 384,148.24

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Solution

The fourth proportional to 857,462.88, 1,286,692.55 and 384,148.24 is: 576,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,462.88 : 1,286,692.55 = 384,148.24 : x
  2. Step 2: Convert to fraction form
    857,462.88/1,286,692.55 = 384,148.24/x
  3. Step 3: Cross multiply
    857,462.88x = 1,286,692.55 × 384,148.24
  4. Step 4: Simplify right side
    857,462.88x = 494,280,679,631.79
  5. Step 5: Solve for x
    x = 494,280,679,631.79/857,462.88
  6. Step 6: Final answer
    x = 576,445.57

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.