Home / 559,690.94-772,391.52-317,969.12

Finding the Fourth Proportional to 559,690.94, 772,391.52 and 317,969.12

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Solution

The fourth proportional to 559,690.94, 772,391.52 and 317,969.12 is: 438,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,690.94 : 772,391.52 = 317,969.12 : x
  2. Step 2: Convert to fraction form
    559,690.94/772,391.52 = 317,969.12/x
  3. Step 3: Cross multiply
    559,690.94x = 772,391.52 × 317,969.12
  4. Step 4: Simplify right side
    559,690.94x = 245,596,651,909.86
  5. Step 5: Solve for x
    x = 245,596,651,909.86/559,690.94
  6. Step 6: Final answer
    x = 438,807.62

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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.