Home / 1,390,314.96-2,085,567.12-443,756.96

Finding the Fourth Proportional to 1,390,314.96, 2,085,567.12 and 443,756.96

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Solution

The fourth proportional to 1,390,314.96, 2,085,567.12 and 443,756.96 is: 665,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,314.96 : 2,085,567.12 = 443,756.96 : x
  2. Step 2: Convert to fraction form
    1,390,314.96/2,085,567.12 = 443,756.96/x
  3. Step 3: Cross multiply
    1,390,314.96x = 2,085,567.12 × 443,756.96
  4. Step 4: Simplify right side
    1,390,314.96x = 925,484,925,047.16
  5. Step 5: Solve for x
    x = 925,484,925,047.16/1,390,314.96
  6. Step 6: Final answer
    x = 665,665.66

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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.