Home / 987,916.97-1,363,316.86-535,206.89

Finding the Fourth Proportional to 987,916.97, 1,363,316.86 and 535,206.89

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Solution

The fourth proportional to 987,916.97, 1,363,316.86 and 535,206.89 is: 738,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,916.97 : 1,363,316.86 = 535,206.89 : x
  2. Step 2: Convert to fraction form
    987,916.97/1,363,316.86 = 535,206.89/x
  3. Step 3: Cross multiply
    987,916.97x = 1,363,316.86 × 535,206.89
  4. Step 4: Simplify right side
    987,916.97x = 729,656,576,725.17
  5. Step 5: Solve for x
    x = 729,656,576,725.17/987,916.97
  6. Step 6: Final answer
    x = 738,580.87

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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.