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Finding the Fourth Proportional to 867,482.40, 1,301,158.80 and 361,912.80

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Solution

The fourth proportional to 867,482.40, 1,301,158.80 and 361,912.80 is: 542,842.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,482.40 : 1,301,158.80 = 361,912.80 : x
  2. Step 2: Convert to fraction form
    867,482.40/1,301,158.80 = 361,912.80/x
  3. Step 3: Cross multiply
    867,482.40x = 1,301,158.80 × 361,912.80
  4. Step 4: Simplify right side
    867,482.40x = 470,906,024,552.64
  5. Step 5: Solve for x
    x = 470,906,024,552.64/867,482.40
  6. Step 6: Final answer
    x = 542,842.17

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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.