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Finding the Fourth Proportional to 507,157.26, 699,898.88 and 280,802.76

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Solution

The fourth proportional to 507,157.26, 699,898.88 and 280,802.76 is: 387,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,157.26 : 699,898.88 = 280,802.76 : x
  2. Step 2: Convert to fraction form
    507,157.26/699,898.88 = 280,802.76/x
  3. Step 3: Cross multiply
    507,157.26x = 699,898.88 × 280,802.76
  4. Step 4: Simplify right side
    507,157.26x = 196,533,537,224.91
  5. Step 5: Solve for x
    x = 196,533,537,224.91/507,157.26
  6. Step 6: Final answer
    x = 387,519.91

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1.5x scale

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.