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Finding the Fourth Proportional to 810,818.68, 1,216,358.68 and 249,852.92

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Solution

The fourth proportional to 810,818.68, 1,216,358.68 and 249,852.92 is: 374,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,818.68 : 1,216,358.68 = 249,852.92 : x
  2. Step 2: Convert to fraction form
    810,818.68/1,216,358.68 = 249,852.92/x
  3. Step 3: Cross multiply
    810,818.68x = 1,216,358.68 × 249,852.92
  4. Step 4: Simplify right side
    810,818.68x = 303,910,767,965.35
  5. Step 5: Solve for x
    x = 303,910,767,965.35/810,818.68
  6. Step 6: Final answer
    x = 374,819.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.