Home / 689,885.90-1,036,009.65-374,957.90

Finding the Fourth Proportional to 689,885.90, 1,036,009.65 and 374,957.90

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Solution

The fourth proportional to 689,885.90, 1,036,009.65 and 374,957.90 is: 563,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,885.90 : 1,036,009.65 = 374,957.90 : x
  2. Step 2: Convert to fraction form
    689,885.90/1,036,009.65 = 374,957.90/x
  3. Step 3: Cross multiply
    689,885.90x = 1,036,009.65 × 374,957.90
  4. Step 4: Simplify right side
    689,885.90x = 388,460,002,743.74
  5. Step 5: Solve for x
    x = 388,460,002,743.74/689,885.90
  6. Step 6: Final answer
    x = 563,078.62

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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.