Home / 707,503.20-1,059,699.60-426,530.40

Finding the Fourth Proportional to 707,503.20, 1,059,699.60 and 426,530.40

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Solution

The fourth proportional to 707,503.20, 1,059,699.60 and 426,530.40 is: 638,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,503.20 : 1,059,699.60 = 426,530.40 : x
  2. Step 2: Convert to fraction form
    707,503.20/1,059,699.60 = 426,530.40/x
  3. Step 3: Cross multiply
    707,503.20x = 1,059,699.60 × 426,530.40
  4. Step 4: Simplify right side
    707,503.20x = 451,994,094,267.84
  5. Step 5: Solve for x
    x = 451,994,094,267.84/707,503.20
  6. Step 6: Final answer
    x = 638,858.02

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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.