Home / 915,582.57-1,371,131.53-645,045.89

Finding the Fourth Proportional to 915,582.57, 1,371,131.53 and 645,045.89

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Solution

The fourth proportional to 915,582.57, 1,371,131.53 and 645,045.89 is: 965,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,582.57 : 1,371,131.53 = 645,045.89 : x
  2. Step 2: Convert to fraction form
    915,582.57/1,371,131.53 = 645,045.89/x
  3. Step 3: Cross multiply
    915,582.57x = 1,371,131.53 × 645,045.89
  4. Step 4: Simplify right side
    915,582.57x = 884,442,753,236.02
  5. Step 5: Solve for x
    x = 884,442,753,236.02/915,582.57
  6. Step 6: Final answer
    x = 965,989.07

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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.