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Finding the Fourth Proportional to 556,929.08, 768,541.54 and 302,274.80

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Solution

The fourth proportional to 556,929.08, 768,541.54 and 302,274.80 is: 417,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,929.08 : 768,541.54 = 302,274.80 : x
  2. Step 2: Convert to fraction form
    556,929.08/768,541.54 = 302,274.80/x
  3. Step 3: Cross multiply
    556,929.08x = 768,541.54 × 302,274.80
  4. Step 4: Simplify right side
    556,929.08x = 232,310,740,295.19
  5. Step 5: Solve for x
    x = 232,310,740,295.19/556,929.08
  6. Step 6: Final answer
    x = 417,128.05

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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.