Home / 909,921.79-1,256,094.71-587,788.93

Finding the Fourth Proportional to 909,921.79, 1,256,094.71 and 587,788.93

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Solution

The fourth proportional to 909,921.79, 1,256,094.71 and 587,788.93 is: 811,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,921.79 : 1,256,094.71 = 587,788.93 : x
  2. Step 2: Convert to fraction form
    909,921.79/1,256,094.71 = 587,788.93/x
  3. Step 3: Cross multiply
    909,921.79x = 1,256,094.71 × 587,788.93
  4. Step 4: Simplify right side
    909,921.79x = 738,318,565,569.56
  5. Step 5: Solve for x
    x = 738,318,565,569.56/909,921.79
  6. Step 6: Final answer
    x = 811,408.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.