Home / 507,743.10-700,656.98-278,256.63

Finding the Fourth Proportional to 507,743.10, 700,656.98 and 278,256.63

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Solution

The fourth proportional to 507,743.10, 700,656.98 and 278,256.63 is: 383,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,743.10 : 700,656.98 = 278,256.63 : x
  2. Step 2: Convert to fraction form
    507,743.10/700,656.98 = 278,256.63/x
  3. Step 3: Cross multiply
    507,743.10x = 700,656.98 × 278,256.63
  4. Step 4: Simplify right side
    507,743.10x = 194,962,448,649.49
  5. Step 5: Solve for x
    x = 194,962,448,649.49/507,743.10
  6. Step 6: Final answer
    x = 383,978.53

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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.