Home / 722,543.20-1,083,814.80-455,437.60

Finding the Fourth Proportional to 722,543.20, 1,083,814.80 and 455,437.60

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Solution

The fourth proportional to 722,543.20, 1,083,814.80 and 455,437.60 is: 683,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,543.20 : 1,083,814.80 = 455,437.60 : x
  2. Step 2: Convert to fraction form
    722,543.20/1,083,814.80 = 455,437.60/x
  3. Step 3: Cross multiply
    722,543.20x = 1,083,814.80 × 455,437.60
  4. Step 4: Simplify right side
    722,543.20x = 493,610,011,356.48
  5. Step 5: Solve for x
    x = 493,610,011,356.48/722,543.20
  6. Step 6: Final answer
    x = 683,156.40

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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.