Home / 612,427.38-845,197.08-367,421.34

Finding the Fourth Proportional to 612,427.38, 845,197.08 and 367,421.34

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Solution

The fourth proportional to 612,427.38, 845,197.08 and 367,421.34 is: 507,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,427.38 : 845,197.08 = 367,421.34 : x
  2. Step 2: Convert to fraction form
    612,427.38/845,197.08 = 367,421.34/x
  3. Step 3: Cross multiply
    612,427.38x = 845,197.08 × 367,421.34
  4. Step 4: Simplify right side
    612,427.38x = 310,543,443,697.69
  5. Step 5: Solve for x
    x = 310,543,443,697.69/612,427.38
  6. Step 6: Final answer
    x = 507,069.82

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Double scale
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Similar ratio
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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.