Home / 915,699.60-1,372,577.40-442,076.40

Finding the Fourth Proportional to 915,699.60, 1,372,577.40 and 442,076.40

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Solution

The fourth proportional to 915,699.60, 1,372,577.40 and 442,076.40 is: 662,645.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,699.60 : 1,372,577.40 = 442,076.40 : x
  2. Step 2: Convert to fraction form
    915,699.60/1,372,577.40 = 442,076.40/x
  3. Step 3: Cross multiply
    915,699.60x = 1,372,577.40 × 442,076.40
  4. Step 4: Simplify right side
    915,699.60x = 606,784,075,713.36
  5. Step 5: Solve for x
    x = 606,784,075,713.36/915,699.60
  6. Step 6: Final answer
    x = 662,645.34

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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.