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Finding the Fourth Proportional to 648,085.77, 972,624.84 and 293,348.90

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Solution

The fourth proportional to 648,085.77, 972,624.84 and 293,348.90 is: 440,247.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,085.77 : 972,624.84 = 293,348.90 : x
  2. Step 2: Convert to fraction form
    648,085.77/972,624.84 = 293,348.90/x
  3. Step 3: Cross multiply
    648,085.77x = 972,624.84 × 293,348.90
  4. Step 4: Simplify right side
    648,085.77x = 285,318,428,258.18
  5. Step 5: Solve for x
    x = 285,318,428,258.18/648,085.77
  6. Step 6: Final answer
    x = 440,247.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.