Home / 513,031.64-707,982.54-286,677.14

Finding the Fourth Proportional to 513,031.64, 707,982.54 and 286,677.14

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Solution

The fourth proportional to 513,031.64, 707,982.54 and 286,677.14 is: 395,613.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,031.64 : 707,982.54 = 286,677.14 : x
  2. Step 2: Convert to fraction form
    513,031.64/707,982.54 = 286,677.14/x
  3. Step 3: Cross multiply
    513,031.64x = 707,982.54 × 286,677.14
  4. Step 4: Simplify right side
    513,031.64x = 202,962,409,737.14
  5. Step 5: Solve for x
    x = 202,962,409,737.14/513,031.64
  6. Step 6: Final answer
    x = 395,613.83

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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.