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Finding the Fourth Proportional to 563,341.59, 777,386.03 and 308,687.31

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Solution

The fourth proportional to 563,341.59, 777,386.03 and 308,687.31 is: 425,974.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,341.59 : 777,386.03 = 308,687.31 : x
  2. Step 2: Convert to fraction form
    563,341.59/777,386.03 = 308,687.31/x
  3. Step 3: Cross multiply
    563,341.59x = 777,386.03 × 308,687.31
  4. Step 4: Simplify right side
    563,341.59x = 239,969,200,888.84
  5. Step 5: Solve for x
    x = 239,969,200,888.84/563,341.59
  6. Step 6: Final answer
    x = 425,974.59

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1.5x scale

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.