Home / 696,003.70-1,044,005.55-428,898.10

Finding the Fourth Proportional to 696,003.70, 1,044,005.55 and 428,898.10

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Solution

The fourth proportional to 696,003.70, 1,044,005.55 and 428,898.10 is: 643,347.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,003.70 : 1,044,005.55 = 428,898.10 : x
  2. Step 2: Convert to fraction form
    696,003.70/1,044,005.55 = 428,898.10/x
  3. Step 3: Cross multiply
    696,003.70x = 1,044,005.55 × 428,898.10
  4. Step 4: Simplify right side
    696,003.70x = 447,771,996,784.46
  5. Step 5: Solve for x
    x = 447,771,996,784.46/696,003.70
  6. Step 6: Final answer
    x = 643,347.15

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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.