Home / 915,000.49-1,372,589.43-283,744.81

Finding the Fourth Proportional to 915,000.49, 1,372,589.43 and 283,744.81

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Solution

The fourth proportional to 915,000.49, 1,372,589.43 and 283,744.81 is: 425,644.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,000.49 : 1,372,589.43 = 283,744.81 : x
  2. Step 2: Convert to fraction form
    915,000.49/1,372,589.43 = 283,744.81/x
  3. Step 3: Cross multiply
    915,000.49x = 1,372,589.43 × 283,744.81
  4. Step 4: Simplify right side
    915,000.49x = 389,465,127,023.36
  5. Step 5: Solve for x
    x = 389,465,127,023.36/915,000.49
  6. Step 6: Final answer
    x = 425,644.72

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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.