Home / 1,272,480.48-1,756,010.67-947,247.91

Finding the Fourth Proportional to 1,272,480.48, 1,756,010.67 and 947,247.91

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Solution

The fourth proportional to 1,272,480.48, 1,756,010.67 and 947,247.91 is: 1,307,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,480.48 : 1,756,010.67 = 947,247.91 : x
  2. Step 2: Convert to fraction form
    1,272,480.48/1,756,010.67 = 947,247.91/x
  3. Step 3: Cross multiply
    1,272,480.48x = 1,756,010.67 × 947,247.91
  4. Step 4: Simplify right side
    1,272,480.48x = 1,663,377,437,095.20
  5. Step 5: Solve for x
    x = 1,663,377,437,095.20/1,272,480.48
  6. Step 6: Final answer
    x = 1,307,192.89

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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.