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Finding the Fourth Proportional to 507,543.25, 700,418.61 and 278,085.52

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Solution

The fourth proportional to 507,543.25, 700,418.61 and 278,085.52 is: 383,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,543.25 : 700,418.61 = 278,085.52 : x
  2. Step 2: Convert to fraction form
    507,543.25/700,418.61 = 278,085.52/x
  3. Step 3: Cross multiply
    507,543.25x = 700,418.61 × 278,085.52
  4. Step 4: Simplify right side
    507,543.25x = 194,776,273,379.53
  5. Step 5: Solve for x
    x = 194,776,273,379.53/507,543.25
  6. Step 6: Final answer
    x = 383,762.91

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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.