Home / 558,812.74-771,140.15-317,080.90

Finding the Fourth Proportional to 558,812.74, 771,140.15 and 317,080.90

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Solution

The fourth proportional to 558,812.74, 771,140.15 and 317,080.90 is: 437,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,812.74 : 771,140.15 = 317,080.90 : x
  2. Step 2: Convert to fraction form
    558,812.74/771,140.15 = 317,080.90/x
  3. Step 3: Cross multiply
    558,812.74x = 771,140.15 × 317,080.90
  4. Step 4: Simplify right side
    558,812.74x = 244,513,810,860.29
  5. Step 5: Solve for x
    x = 244,513,810,860.29/558,812.74
  6. Step 6: Final answer
    x = 437,559.48

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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.