Home / 689,883.40-1,036,005.90-374,955.40

Finding the Fourth Proportional to 689,883.40, 1,036,005.90 and 374,955.40

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Solution

The fourth proportional to 689,883.40, 1,036,005.90 and 374,955.40 is: 563,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,883.40 : 1,036,005.90 = 374,955.40 : x
  2. Step 2: Convert to fraction form
    689,883.40/1,036,005.90 = 374,955.40/x
  3. Step 3: Cross multiply
    689,883.40x = 1,036,005.90 × 374,955.40
  4. Step 4: Simplify right side
    689,883.40x = 388,456,006,636.86
  5. Step 5: Solve for x
    x = 388,456,006,636.86/689,883.40
  6. Step 6: Final answer
    x = 563,074.87

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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.