Home / 594,631.10-820,048.38-390,600.20

Finding the Fourth Proportional to 594,631.10, 820,048.38 and 390,600.20

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Solution

The fourth proportional to 594,631.10, 820,048.38 and 390,600.20 is: 538,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,631.10 : 820,048.38 = 390,600.20 : x
  2. Step 2: Convert to fraction form
    594,631.10/820,048.38 = 390,600.20/x
  3. Step 3: Cross multiply
    594,631.10x = 820,048.38 × 390,600.20
  4. Step 4: Simplify right side
    594,631.10x = 320,311,061,237.68
  5. Step 5: Solve for x
    x = 320,311,061,237.68/594,631.10
  6. Step 6: Final answer
    x = 538,671.89

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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.