Home / 926,623.86-1,390,834.60-447,189.12

Finding the Fourth Proportional to 926,623.86, 1,390,834.60 and 447,189.12

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Solution

The fourth proportional to 926,623.86, 1,390,834.60 and 447,189.12 is: 671,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,623.86 : 1,390,834.60 = 447,189.12 : x
  2. Step 2: Convert to fraction form
    926,623.86/1,390,834.60 = 447,189.12/x
  3. Step 3: Cross multiply
    926,623.86x = 1,390,834.60 × 447,189.12
  4. Step 4: Simplify right side
    926,623.86x = 621,966,100,839.55
  5. Step 5: Solve for x
    x = 621,966,100,839.55/926,623.86
  6. Step 6: Final answer
    x = 671,217.45

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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.