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Finding the Fourth Proportional to 652,571.12, 900,951.36 and 435,085.76

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Solution

The fourth proportional to 652,571.12, 900,951.36 and 435,085.76 is: 600,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,571.12 : 900,951.36 = 435,085.76 : x
  2. Step 2: Convert to fraction form
    652,571.12/900,951.36 = 435,085.76/x
  3. Step 3: Cross multiply
    652,571.12x = 900,951.36 × 435,085.76
  4. Step 4: Simplify right side
    652,571.12x = 391,991,107,188.63
  5. Step 5: Solve for x
    x = 391,991,107,188.63/652,571.12
  6. Step 6: Final answer
    x = 600,687.18

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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.