Home / 698,904.62-964,256.40-569,620.78

Finding the Fourth Proportional to 698,904.62, 964,256.40 and 569,620.78

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Solution

The fourth proportional to 698,904.62, 964,256.40 and 569,620.78 is: 785,887.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,904.62 : 964,256.40 = 569,620.78 : x
  2. Step 2: Convert to fraction form
    698,904.62/964,256.40 = 569,620.78/x
  3. Step 3: Cross multiply
    698,904.62x = 964,256.40 × 569,620.78
  4. Step 4: Simplify right side
    698,904.62x = 549,260,482,687.99
  5. Step 5: Solve for x
    x = 549,260,482,687.99/698,904.62
  6. Step 6: Final answer
    x = 785,887.61

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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.