Home / 648,228.20-972,342.30-559,581.80

Finding the Fourth Proportional to 648,228.20, 972,342.30 and 559,581.80

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Solution

The fourth proportional to 648,228.20, 972,342.30 and 559,581.80 is: 839,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,228.20 : 972,342.30 = 559,581.80 : x
  2. Step 2: Convert to fraction form
    648,228.20/972,342.30 = 559,581.80/x
  3. Step 3: Cross multiply
    648,228.20x = 972,342.30 × 559,581.80
  4. Step 4: Simplify right side
    648,228.20x = 544,105,054,450.14
  5. Step 5: Solve for x
    x = 544,105,054,450.14/648,228.20
  6. Step 6: Final answer
    x = 839,372.70

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Double scale
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Similar ratio
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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.