Home / 973,128.96-1,342,905.28-543,416.64

Finding the Fourth Proportional to 973,128.96, 1,342,905.28 and 543,416.64

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Solution

The fourth proportional to 973,128.96, 1,342,905.28 and 543,416.64 is: 749,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    973,128.96 : 1,342,905.28 = 543,416.64 : x
  2. Step 2: Convert to fraction form
    973,128.96/1,342,905.28 = 543,416.64/x
  3. Step 3: Cross multiply
    973,128.96x = 1,342,905.28 × 543,416.64
  4. Step 4: Simplify right side
    973,128.96x = 729,757,075,095.86
  5. Step 5: Solve for x
    x = 729,757,075,095.86/973,128.96
  6. Step 6: Final answer
    x = 749,907.88

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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.