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Finding the Fourth Proportional to 556,929.68, 768,563.66 and 302,280.92

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Solution

The fourth proportional to 556,929.68, 768,563.66 and 302,280.92 is: 417,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,929.68 : 768,563.66 = 302,280.92 : x
  2. Step 2: Convert to fraction form
    556,929.68/768,563.66 = 302,280.92/x
  3. Step 3: Cross multiply
    556,929.68x = 768,563.66 × 302,280.92
  4. Step 4: Simplify right side
    556,929.68x = 232,322,130,223.37
  5. Step 5: Solve for x
    x = 232,322,130,223.37/556,929.68
  6. Step 6: Final answer
    x = 417,148.05

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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.