Home / 950,457.72-1,311,631.68-520,754.16

Finding the Fourth Proportional to 950,457.72, 1,311,631.68 and 520,754.16

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Solution

The fourth proportional to 950,457.72, 1,311,631.68 and 520,754.16 is: 718,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,457.72 : 1,311,631.68 = 520,754.16 : x
  2. Step 2: Convert to fraction form
    950,457.72/1,311,631.68 = 520,754.16/x
  3. Step 3: Cross multiply
    950,457.72x = 1,311,631.68 × 520,754.16
  4. Step 4: Simplify right side
    950,457.72x = 683,037,653,747.79
  5. Step 5: Solve for x
    x = 683,037,653,747.79/950,457.72
  6. Step 6: Final answer
    x = 718,640.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.