Home / 721,878.48-1,082,444.31-316,904.94

Finding the Fourth Proportional to 721,878.48, 1,082,444.31 and 316,904.94

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Solution

The fourth proportional to 721,878.48, 1,082,444.31 and 316,904.94 is: 475,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,878.48 : 1,082,444.31 = 316,904.94 : x
  2. Step 2: Convert to fraction form
    721,878.48/1,082,444.31 = 316,904.94/x
  3. Step 3: Cross multiply
    721,878.48x = 1,082,444.31 × 316,904.94
  4. Step 4: Simplify right side
    721,878.48x = 343,031,949,113.89
  5. Step 5: Solve for x
    x = 343,031,949,113.89/721,878.48
  6. Step 6: Final answer
    x = 475,193.48

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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.