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Finding the Fourth Proportional to 563,534.40, 846,079.20 and 445,339.20

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Solution

The fourth proportional to 563,534.40, 846,079.20 and 445,339.20 is: 668,623.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,534.40 : 846,079.20 = 445,339.20 : x
  2. Step 2: Convert to fraction form
    563,534.40/846,079.20 = 445,339.20/x
  3. Step 3: Cross multiply
    563,534.40x = 846,079.20 × 445,339.20
  4. Step 4: Simplify right side
    563,534.40x = 376,792,234,064.64
  5. Step 5: Solve for x
    x = 376,792,234,064.64/563,534.40
  6. Step 6: Final answer
    x = 668,623.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.