Home / 520,210.08-780,367.04-141,136.76

Finding the Fourth Proportional to 520,210.08, 780,367.04 and 141,136.76

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Solution

The fourth proportional to 520,210.08, 780,367.04 and 141,136.76 is: 211,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,210.08 : 780,367.04 = 141,136.76 : x
  2. Step 2: Convert to fraction form
    520,210.08/780,367.04 = 141,136.76/x
  3. Step 3: Cross multiply
    520,210.08x = 780,367.04 × 141,136.76
  4. Step 4: Simplify right side
    520,210.08x = 110,138,475,636.39
  5. Step 5: Solve for x
    x = 110,138,475,636.39/520,210.08
  6. Step 6: Final answer
    x = 211,719.23

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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.