Home / 721,567.67-1,082,031.55-384,545.50

Finding the Fourth Proportional to 721,567.67, 1,082,031.55 and 384,545.50

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Solution

The fourth proportional to 721,567.67, 1,082,031.55 and 384,545.50 is: 576,647.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,567.67 : 1,082,031.55 = 384,545.50 : x
  2. Step 2: Convert to fraction form
    721,567.67/1,082,031.55 = 384,545.50/x
  3. Step 3: Cross multiply
    721,567.67x = 1,082,031.55 × 384,545.50
  4. Step 4: Simplify right side
    721,567.67x = 416,090,359,744.08
  5. Step 5: Solve for x
    x = 416,090,359,744.08/721,567.67
  6. Step 6: Final answer
    x = 576,647.74

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.