Home / 558,812.49-771,139.81-317,080.65

Finding the Fourth Proportional to 558,812.49, 771,139.81 and 317,080.65

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Solution

The fourth proportional to 558,812.49, 771,139.81 and 317,080.65 is: 437,559.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,812.49 : 771,139.81 = 317,080.65 : x
  2. Step 2: Convert to fraction form
    558,812.49/771,139.81 = 317,080.65/x
  3. Step 3: Cross multiply
    558,812.49x = 771,139.81 × 317,080.65
  4. Step 4: Simplify right side
    558,812.49x = 244,513,508,682.42
  5. Step 5: Solve for x
    x = 244,513,508,682.42/558,812.49
  6. Step 6: Final answer
    x = 437,559.13

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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.