Home / 558,931.12-771,280.64-317,213.68

Finding the Fourth Proportional to 558,931.12, 771,280.64 and 317,213.68

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Solution

The fourth proportional to 558,931.12, 771,280.64 and 317,213.68 is: 437,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,931.12 : 771,280.64 = 317,213.68 : x
  2. Step 2: Convert to fraction form
    558,931.12/771,280.64 = 317,213.68/x
  3. Step 3: Cross multiply
    558,931.12x = 771,280.64 × 317,213.68
  4. Step 4: Simplify right side
    558,931.12x = 244,660,770,127.16
  5. Step 5: Solve for x
    x = 244,660,770,127.16/558,931.12
  6. Step 6: Final answer
    x = 437,729.73

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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.