Home / 817,928.76-1,226,900.90-510,274.20

Finding the Fourth Proportional to 817,928.76, 1,226,900.90 and 510,274.20

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Solution

The fourth proportional to 817,928.76, 1,226,900.90 and 510,274.20 is: 765,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,928.76 : 1,226,900.90 = 510,274.20 : x
  2. Step 2: Convert to fraction form
    817,928.76/1,226,900.90 = 510,274.20/x
  3. Step 3: Cross multiply
    817,928.76x = 1,226,900.90 × 510,274.20
  4. Step 4: Simplify right side
    817,928.76x = 626,055,875,226.78
  5. Step 5: Solve for x
    x = 626,055,875,226.78/817,928.76
  6. Step 6: Final answer
    x = 765,416.14

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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.