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Finding the Fourth Proportional to 563,089.87, 777,079.80 and 342,326.80

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Solution

The fourth proportional to 563,089.87, 777,079.80 and 342,326.80 is: 472,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,089.87 : 777,079.80 = 342,326.80 : x
  2. Step 2: Convert to fraction form
    563,089.87/777,079.80 = 342,326.80/x
  3. Step 3: Cross multiply
    563,089.87x = 777,079.80 × 342,326.80
  4. Step 4: Simplify right side
    563,089.87x = 266,015,239,335.94
  5. Step 5: Solve for x
    x = 266,015,239,335.94/563,089.87
  6. Step 6: Final answer
    x = 472,420.58

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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.