Home / 509,931.08-764,984.10-273,210.20

Finding the Fourth Proportional to 509,931.08, 764,984.10 and 273,210.20

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Solution

The fourth proportional to 509,931.08, 764,984.10 and 273,210.20 is: 409,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,931.08 : 764,984.10 = 273,210.20 : x
  2. Step 2: Convert to fraction form
    509,931.08/764,984.10 = 273,210.20/x
  3. Step 3: Cross multiply
    509,931.08x = 764,984.10 × 273,210.20
  4. Step 4: Simplify right side
    509,931.08x = 209,001,458,957.82
  5. Step 5: Solve for x
    x = 209,001,458,957.82/509,931.08
  6. Step 6: Final answer
    x = 409,862.17

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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.