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Finding the Fourth Proportional to 587,859, 810,307.95 and 442,446.23

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Solution

The fourth proportional to 587,859, 810,307.95 and 442,446.23 is: 609,870.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,859 : 810,307.95 = 442,446.23 : x
  2. Step 2: Convert to fraction form
    587,859/810,307.95 = 442,446.23/x
  3. Step 3: Cross multiply
    587,859x = 810,307.95 × 442,446.23
  4. Step 4: Simplify right side
    587,859x = 358,517,693,564.99
  5. Step 5: Solve for x
    x = 358,517,693,564.99/587,859
  6. Step 6: Final answer
    x = 609,870.21

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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.