Home / 563,756.08-777,977.76-309,106.68

Finding the Fourth Proportional to 563,756.08, 777,977.76 and 309,106.68

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Solution

The fourth proportional to 563,756.08, 777,977.76 and 309,106.68 is: 426,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,756.08 : 777,977.76 = 309,106.68 : x
  2. Step 2: Convert to fraction form
    563,756.08/777,977.76 = 309,106.68/x
  3. Step 3: Cross multiply
    563,756.08x = 777,977.76 × 309,106.68
  4. Step 4: Simplify right side
    563,756.08x = 240,478,122,507.44
  5. Step 5: Solve for x
    x = 240,478,122,507.44/563,756.08
  6. Step 6: Final answer
    x = 426,564.13

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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.