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Finding the Fourth Proportional to 761,803.62, 1,051,364.23 and 435,165.52

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Solution

The fourth proportional to 761,803.62, 1,051,364.23 and 435,165.52 is: 600,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,803.62 : 1,051,364.23 = 435,165.52 : x
  2. Step 2: Convert to fraction form
    761,803.62/1,051,364.23 = 435,165.52/x
  3. Step 3: Cross multiply
    761,803.62x = 1,051,364.23 × 435,165.52
  4. Step 4: Simplify right side
    761,803.62x = 457,517,462,083.64
  5. Step 5: Solve for x
    x = 457,517,462,083.64/761,803.62
  6. Step 6: Final answer
    x = 600,571.39

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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.