Home / 1,038,615.09-1,558,001.43-280,445.52

Finding the Fourth Proportional to 1,038,615.09, 1,558,001.43 and 280,445.52

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Solution

The fourth proportional to 1,038,615.09, 1,558,001.43 and 280,445.52 is: 420,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,615.09 : 1,558,001.43 = 280,445.52 : x
  2. Step 2: Convert to fraction form
    1,038,615.09/1,558,001.43 = 280,445.52/x
  3. Step 3: Cross multiply
    1,038,615.09x = 1,558,001.43 × 280,445.52
  4. Step 4: Simplify right side
    1,038,615.09x = 436,934,513,407.09
  5. Step 5: Solve for x
    x = 436,934,513,407.09/1,038,615.09
  6. Step 6: Final answer
    x = 420,689.55

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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.