Home / 563,029.31-776,980.49-308,389.61

Finding the Fourth Proportional to 563,029.31, 776,980.49 and 308,389.61

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Solution

The fourth proportional to 563,029.31, 776,980.49 and 308,389.61 is: 425,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,029.31 : 776,980.49 = 308,389.61 : x
  2. Step 2: Convert to fraction form
    563,029.31/776,980.49 = 308,389.61/x
  3. Step 3: Cross multiply
    563,029.31x = 776,980.49 × 308,389.61
  4. Step 4: Simplify right side
    563,029.31x = 239,612,710,689.21
  5. Step 5: Solve for x
    x = 239,612,710,689.21/563,029.31
  6. Step 6: Final answer
    x = 425,577.68

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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.