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Finding the Fourth Proportional to 559,709.03, 772,398.72 and 317,992.01

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Solution

The fourth proportional to 559,709.03, 772,398.72 and 317,992.01 is: 438,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,709.03 : 772,398.72 = 317,992.01 : x
  2. Step 2: Convert to fraction form
    559,709.03/772,398.72 = 317,992.01/x
  3. Step 3: Cross multiply
    559,709.03x = 772,398.72 × 317,992.01
  4. Step 4: Simplify right side
    559,709.03x = 245,616,617,632.23
  5. Step 5: Solve for x
    x = 245,616,617,632.23/559,709.03
  6. Step 6: Final answer
    x = 438,829.11

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