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Finding the Fourth Proportional to 1,040,465, 1,435,958.40 and 587,785.16

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Solution

The fourth proportional to 1,040,465, 1,435,958.40 and 587,785.16 is: 811,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,465 : 1,435,958.40 = 587,785.16 : x
  2. Step 2: Convert to fraction form
    1,040,465/1,435,958.40 = 587,785.16/x
  3. Step 3: Cross multiply
    1,040,465x = 1,435,958.40 × 587,785.16
  4. Step 4: Simplify right side
    1,040,465x = 844,035,037,897.34
  5. Step 5: Solve for x
    x = 844,035,037,897.34/1,040,465
  6. Step 6: Final answer
    x = 811,209.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.