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Finding the Fourth Proportional to 572,730.40, 859,095.60 and 306,353.80

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Solution

The fourth proportional to 572,730.40, 859,095.60 and 306,353.80 is: 459,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,730.40 : 859,095.60 = 306,353.80 : x
  2. Step 2: Convert to fraction form
    572,730.40/859,095.60 = 306,353.80/x
  3. Step 3: Cross multiply
    572,730.40x = 859,095.60 × 306,353.80
  4. Step 4: Simplify right side
    572,730.40x = 263,187,201,623.28
  5. Step 5: Solve for x
    x = 263,187,201,623.28/572,730.40
  6. Step 6: Final answer
    x = 459,530.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.