Home / 509,250.36-702,473.08-317,931.60

Finding the Fourth Proportional to 509,250.36, 702,473.08 and 317,931.60

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Solution

The fourth proportional to 509,250.36, 702,473.08 and 317,931.60 is: 438,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,250.36 : 702,473.08 = 317,931.60 : x
  2. Step 2: Convert to fraction form
    509,250.36/702,473.08 = 317,931.60/x
  3. Step 3: Cross multiply
    509,250.36x = 702,473.08 × 317,931.60
  4. Step 4: Simplify right side
    509,250.36x = 223,338,390,281.33
  5. Step 5: Solve for x
    x = 223,338,390,281.33/509,250.36
  6. Step 6: Final answer
    x = 438,563.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.