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Finding the Fourth Proportional to 458,779.04, 688,333.68 and 206,039.84

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Solution

The fourth proportional to 458,779.04, 688,333.68 and 206,039.84 is: 309,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,779.04 : 688,333.68 = 206,039.84 : x
  2. Step 2: Convert to fraction form
    458,779.04/688,333.68 = 206,039.84/x
  3. Step 3: Cross multiply
    458,779.04x = 688,333.68 × 206,039.84
  4. Step 4: Simplify right side
    458,779.04x = 141,824,161,293.81
  5. Step 5: Solve for x
    x = 141,824,161,293.81/458,779.04
  6. Step 6: Final answer
    x = 309,133.92

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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.