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Finding the Fourth Proportional to 652,306, 900,183.90 and 380,560.72

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Solution

The fourth proportional to 652,306, 900,183.90 and 380,560.72 is: 525,174.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,306 : 900,183.90 = 380,560.72 : x
  2. Step 2: Convert to fraction form
    652,306/900,183.90 = 380,560.72/x
  3. Step 3: Cross multiply
    652,306x = 900,183.90 × 380,560.72
  4. Step 4: Simplify right side
    652,306x = 342,574,633,116.41
  5. Step 5: Solve for x
    x = 342,574,633,116.41/652,306
  6. Step 6: Final answer
    x = 525,174.74

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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.