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Finding the Fourth Proportional to 487,988.79, 730,917.12 and 202,814.72

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Solution

The fourth proportional to 487,988.79, 730,917.12 and 202,814.72 is: 303,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,988.79 : 730,917.12 = 202,814.72 : x
  2. Step 2: Convert to fraction form
    487,988.79/730,917.12 = 202,814.72/x
  3. Step 3: Cross multiply
    487,988.79x = 730,917.12 × 202,814.72
  4. Step 4: Simplify right side
    487,988.79x = 148,240,751,036.01
  5. Step 5: Solve for x
    x = 148,240,751,036.01/487,988.79
  6. Step 6: Final answer
    x = 303,779.01

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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.