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Finding the Fourth Proportional to 613,281.40, 919,922.10 and 453,849.10

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Solution

The fourth proportional to 613,281.40, 919,922.10 and 453,849.10 is: 680,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,281.40 : 919,922.10 = 453,849.10 : x
  2. Step 2: Convert to fraction form
    613,281.40/919,922.10 = 453,849.10/x
  3. Step 3: Cross multiply
    613,281.40x = 919,922.10 × 453,849.10
  4. Step 4: Simplify right side
    613,281.40x = 417,505,817,155.11
  5. Step 5: Solve for x
    x = 417,505,817,155.11/613,281.40
  6. Step 6: Final answer
    x = 680,773.65

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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.