Home / 689,890.40-1,036,016.40-374,962.40

Finding the Fourth Proportional to 689,890.40, 1,036,016.40 and 374,962.40

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Solution

The fourth proportional to 689,890.40, 1,036,016.40 and 374,962.40 is: 563,085.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,890.40 : 1,036,016.40 = 374,962.40 : x
  2. Step 2: Convert to fraction form
    689,890.40/1,036,016.40 = 374,962.40/x
  3. Step 3: Cross multiply
    689,890.40x = 1,036,016.40 × 374,962.40
  4. Step 4: Simplify right side
    689,890.40x = 388,467,195,783.36
  5. Step 5: Solve for x
    x = 388,467,195,783.36/689,890.40
  6. Step 6: Final answer
    x = 563,085.38

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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.