Home / 708,631.35-1,063,387.84-287,907.22

Finding the Fourth Proportional to 708,631.35, 1,063,387.84 and 287,907.22

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Solution

The fourth proportional to 708,631.35, 1,063,387.84 and 287,907.22 is: 432,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,631.35 : 1,063,387.84 = 287,907.22 : x
  2. Step 2: Convert to fraction form
    708,631.35/1,063,387.84 = 287,907.22/x
  3. Step 3: Cross multiply
    708,631.35x = 1,063,387.84 × 287,907.22
  4. Step 4: Simplify right side
    708,631.35x = 306,157,036,796.21
  5. Step 5: Solve for x
    x = 306,157,036,796.21/708,631.35
  6. Step 6: Final answer
    x = 432,039.93

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1.5x scale

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.