Home / 563,826.63-778,116.18-309,177.81

Finding the Fourth Proportional to 563,826.63, 778,116.18 and 309,177.81

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Solution

The fourth proportional to 563,826.63, 778,116.18 and 309,177.81 is: 426,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,826.63 : 778,116.18 = 309,177.81 : x
  2. Step 2: Convert to fraction form
    563,826.63/778,116.18 = 309,177.81/x
  3. Step 3: Cross multiply
    563,826.63x = 778,116.18 × 309,177.81
  4. Step 4: Simplify right side
    563,826.63x = 240,576,256,457.97
  5. Step 5: Solve for x
    x = 240,576,256,457.97/563,826.63
  6. Step 6: Final answer
    x = 426,684.81

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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.