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Finding the Fourth Proportional to 563,386.53, 777,479.54 and 308,732.25

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Solution

The fourth proportional to 563,386.53, 777,479.54 and 308,732.25 is: 426,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,386.53 : 777,479.54 = 308,732.25 : x
  2. Step 2: Convert to fraction form
    563,386.53/777,479.54 = 308,732.25/x
  3. Step 3: Cross multiply
    563,386.53x = 777,479.54 × 308,732.25
  4. Step 4: Simplify right side
    563,386.53x = 240,033,006,169.50
  5. Step 5: Solve for x
    x = 240,033,006,169.50/563,386.53
  6. Step 6: Final answer
    x = 426,053.86

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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.