Home / 992,457.89-1,488,880.68-318,487.38

Finding the Fourth Proportional to 992,457.89, 1,488,880.68 and 318,487.38

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Solution

The fourth proportional to 992,457.89, 1,488,880.68 and 318,487.38 is: 477,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,457.89 : 1,488,880.68 = 318,487.38 : x
  2. Step 2: Convert to fraction form
    992,457.89/1,488,880.68 = 318,487.38/x
  3. Step 3: Cross multiply
    992,457.89x = 1,488,880.68 × 318,487.38
  4. Step 4: Simplify right side
    992,457.89x = 474,189,706,905.82
  5. Step 5: Solve for x
    x = 474,189,706,905.82/992,457.89
  6. Step 6: Final answer
    x = 477,793.28

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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.