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Finding the Fourth Proportional to 978,037.30, 1,463,945.55 and 698,101.30

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Solution

The fourth proportional to 978,037.30, 1,463,945.55 and 698,101.30 is: 1,044,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,037.30 : 1,463,945.55 = 698,101.30 : x
  2. Step 2: Convert to fraction form
    978,037.30/1,463,945.55 = 698,101.30/x
  3. Step 3: Cross multiply
    978,037.30x = 1,463,945.55 × 698,101.30
  4. Step 4: Simplify right side
    978,037.30x = 1,021,982,291,584.22
  5. Step 5: Solve for x
    x = 1,021,982,291,584.22/978,037.30
  6. Step 6: Final answer
    x = 1,044,931.82

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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.