Home / 513,464.55-708,526.56-283,985.38

Finding the Fourth Proportional to 513,464.55, 708,526.56 and 283,985.38

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Solution

The fourth proportional to 513,464.55, 708,526.56 and 283,985.38 is: 391,869.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,464.55 : 708,526.56 = 283,985.38 : x
  2. Step 2: Convert to fraction form
    513,464.55/708,526.56 = 283,985.38/x
  3. Step 3: Cross multiply
    513,464.55x = 708,526.56 × 283,985.38
  4. Step 4: Simplify right side
    513,464.55x = 201,211,184,381.69
  5. Step 5: Solve for x
    x = 201,211,184,381.69/513,464.55
  6. Step 6: Final answer
    x = 391,869.67

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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.