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Finding the Fourth Proportional to 788,329, 1,087,894.02 and 430,633

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Solution

The fourth proportional to 788,329, 1,087,894.02 and 430,633 is: 594,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,329 : 1,087,894.02 = 430,633 : x
  2. Step 2: Convert to fraction form
    788,329/1,087,894.02 = 430,633/x
  3. Step 3: Cross multiply
    788,329x = 1,087,894.02 × 430,633
  4. Step 4: Simplify right side
    788,329x = 468,483,065,514.66
  5. Step 5: Solve for x
    x = 468,483,065,514.66/788,329
  6. Step 6: Final answer
    x = 594,273.54

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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.