Home / 955,678.92-1,318,812.69-520,077.75

Finding the Fourth Proportional to 955,678.92, 1,318,812.69 and 520,077.75

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Solution

The fourth proportional to 955,678.92, 1,318,812.69 and 520,077.75 is: 717,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,678.92 : 1,318,812.69 = 520,077.75 : x
  2. Step 2: Convert to fraction form
    955,678.92/1,318,812.69 = 520,077.75/x
  3. Step 3: Cross multiply
    955,678.92x = 1,318,812.69 × 520,077.75
  4. Step 4: Simplify right side
    955,678.92x = 685,885,136,486.65
  5. Step 5: Solve for x
    x = 685,885,136,486.65/955,678.92
  6. Step 6: Final answer
    x = 717,694.11

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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.