Home / 520,214.08-780,373.04-141,140.76

Finding the Fourth Proportional to 520,214.08, 780,373.04 and 141,140.76

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Solution

The fourth proportional to 520,214.08, 780,373.04 and 141,140.76 is: 211,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,214.08 : 780,373.04 = 141,140.76 : x
  2. Step 2: Convert to fraction form
    520,214.08/780,373.04 = 141,140.76/x
  3. Step 3: Cross multiply
    520,214.08x = 780,373.04 × 141,140.76
  4. Step 4: Simplify right side
    520,214.08x = 110,142,443,949.11
  5. Step 5: Solve for x
    x = 110,142,443,949.11/520,214.08
  6. Step 6: Final answer
    x = 211,725.23

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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.