Home / 670,457.18-1,005,021.48-314,834.60

Finding the Fourth Proportional to 670,457.18, 1,005,021.48 and 314,834.60

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Solution

The fourth proportional to 670,457.18, 1,005,021.48 and 314,834.60 is: 471,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,457.18 : 1,005,021.48 = 314,834.60 : x
  2. Step 2: Convert to fraction form
    670,457.18/1,005,021.48 = 314,834.60/x
  3. Step 3: Cross multiply
    670,457.18x = 1,005,021.48 × 314,834.60
  4. Step 4: Simplify right side
    670,457.18x = 316,415,535,647.21
  5. Step 5: Solve for x
    x = 316,415,535,647.21/670,457.18
  6. Step 6: Final answer
    x = 471,939.96

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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.