Home / 983,440.20-1,475,160.30-384,420.90

Finding the Fourth Proportional to 983,440.20, 1,475,160.30 and 384,420.90

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Solution

The fourth proportional to 983,440.20, 1,475,160.30 and 384,420.90 is: 576,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,440.20 : 1,475,160.30 = 384,420.90 : x
  2. Step 2: Convert to fraction form
    983,440.20/1,475,160.30 = 384,420.90/x
  3. Step 3: Cross multiply
    983,440.20x = 1,475,160.30 × 384,420.90
  4. Step 4: Simplify right side
    983,440.20x = 567,082,450,170.27
  5. Step 5: Solve for x
    x = 567,082,450,170.27/983,440.20
  6. Step 6: Final answer
    x = 576,631.35

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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.