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Finding the Fourth Proportional to 559,716.51, 772,409.07 and 317,999.52

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Solution

The fourth proportional to 559,716.51, 772,409.07 and 317,999.52 is: 438,839.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,716.51 : 772,409.07 = 317,999.52 : x
  2. Step 2: Convert to fraction form
    559,716.51/772,409.07 = 317,999.52/x
  3. Step 3: Cross multiply
    559,716.51x = 772,409.07 × 317,999.52
  4. Step 4: Simplify right side
    559,716.51x = 245,625,713,503.65
  5. Step 5: Solve for x
    x = 245,625,713,503.65/559,716.51
  6. Step 6: Final answer
    x = 438,839.50

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1.5x scale

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.