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Finding the Fourth Proportional to 899,482.60, 1,349,223.90 and 338,642.92

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Solution

The fourth proportional to 899,482.60, 1,349,223.90 and 338,642.92 is: 507,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,482.60 : 1,349,223.90 = 338,642.92 : x
  2. Step 2: Convert to fraction form
    899,482.60/1,349,223.90 = 338,642.92/x
  3. Step 3: Cross multiply
    899,482.60x = 1,349,223.90 × 338,642.92
  4. Step 4: Simplify right side
    899,482.60x = 456,905,121,229.79
  5. Step 5: Solve for x
    x = 456,905,121,229.79/899,482.60
  6. Step 6: Final answer
    x = 507,964.38

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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.