Home / 988,261.60-1,482,457.20-278,312.80

Finding the Fourth Proportional to 988,261.60, 1,482,457.20 and 278,312.80

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Solution

The fourth proportional to 988,261.60, 1,482,457.20 and 278,312.80 is: 417,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,261.60 : 1,482,457.20 = 278,312.80 : x
  2. Step 2: Convert to fraction form
    988,261.60/1,482,457.20 = 278,312.80/x
  3. Step 3: Cross multiply
    988,261.60x = 1,482,457.20 × 278,312.80
  4. Step 4: Simplify right side
    988,261.60x = 412,586,814,212.16
  5. Step 5: Solve for x
    x = 412,586,814,212.16/988,261.60
  6. Step 6: Final answer
    x = 417,487.45

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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.