Home / 908,712.72-1,254,031.80-500,829.12

Finding the Fourth Proportional to 908,712.72, 1,254,031.80 and 500,829.12

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Solution

The fourth proportional to 908,712.72, 1,254,031.80 and 500,829.12 is: 691,148.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,712.72 : 1,254,031.80 = 500,829.12 : x
  2. Step 2: Convert to fraction form
    908,712.72/1,254,031.80 = 500,829.12/x
  3. Step 3: Cross multiply
    908,712.72x = 1,254,031.80 × 500,829.12
  4. Step 4: Simplify right side
    908,712.72x = 628,055,642,846.02
  5. Step 5: Solve for x
    x = 628,055,642,846.02/908,712.72
  6. Step 6: Final answer
    x = 691,148.73

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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.