Home / 811,916.70-1,217,875.05-546,495.90

Finding the Fourth Proportional to 811,916.70, 1,217,875.05 and 546,495.90

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Solution

The fourth proportional to 811,916.70, 1,217,875.05 and 546,495.90 is: 819,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,916.70 : 1,217,875.05 = 546,495.90 : x
  2. Step 2: Convert to fraction form
    811,916.70/1,217,875.05 = 546,495.90/x
  3. Step 3: Cross multiply
    811,916.70x = 1,217,875.05 × 546,495.90
  4. Step 4: Simplify right side
    811,916.70x = 665,563,721,537.30
  5. Step 5: Solve for x
    x = 665,563,721,537.30/811,916.70
  6. Step 6: Final answer
    x = 819,743.85

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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.