Home / 840,730.78-1,160,197.59-458,750.98

Finding the Fourth Proportional to 840,730.78, 1,160,197.59 and 458,750.98

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Solution

The fourth proportional to 840,730.78, 1,160,197.59 and 458,750.98 is: 633,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,730.78 : 1,160,197.59 = 458,750.98 : x
  2. Step 2: Convert to fraction form
    840,730.78/1,160,197.59 = 458,750.98/x
  3. Step 3: Cross multiply
    840,730.78x = 1,160,197.59 × 458,750.98
  4. Step 4: Simplify right side
    840,730.78x = 532,241,781,406.14
  5. Step 5: Solve for x
    x = 532,241,781,406.14/840,730.78
  6. Step 6: Final answer
    x = 633,070.41

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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.