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Finding the Fourth Proportional to 584,490.36, 806,780.48 and 342,870.60

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Solution

The fourth proportional to 584,490.36, 806,780.48 and 342,870.60 is: 473,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,490.36 : 806,780.48 = 342,870.60 : x
  2. Step 2: Convert to fraction form
    584,490.36/806,780.48 = 342,870.60/x
  3. Step 3: Cross multiply
    584,490.36x = 806,780.48 × 342,870.60
  4. Step 4: Simplify right side
    584,490.36x = 276,621,307,245.89
  5. Step 5: Solve for x
    x = 276,621,307,245.89/584,490.36
  6. Step 6: Final answer
    x = 473,269.24

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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.